Reddit mentions of LED Strip Lights, L8star Color Changing Rope Lights 16.4ft SMD 5050 RGB Light Strips with Bluetooth Controller Sync to Music Apply for TV, Bedroom, Party and Home Decoration

I used this fairly affordable LED strip: https://www.amazon.com/gp/product/B07PLNDJ2N/ref=ppx_yo_dt_b_asin_title_o00_s01?ie=UTF8&psc=1

EDIT: forgot to link the LEDs I used behind the monitor https://www.amazon.com/gp/product/B072QWJRBS/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1

https://www.homedepot.com/p/Knape-Vogt-16-in-x-48-in-Diamond-Plate-Galvanized-Steel-Pegboard-0204-1648/203950788


LED Strip Lights, L8star Color... https://www.amazon.com/dp/B07PLNDJ2N?ref=ppx_pop_mob_ap_share

RGB The future is now old man!

Amazon!

Has a remote, app, and will sync to music or whatever. Only gripe is that it doesn’t get as dim as I’d like but crank it up in a dark room and it can blow your eyes out.

It depends on the look you want to go for. My room started off looking a lot like yours with the beige on beige carpet and walls, minus the ummm..... unique drape. ;) I repainted and added some chair railing but that may be more than what you want to do.

LED lights are an easy, inexpensive addition. They allow you to change the entire look of the room at a moments notice and when you don't want them, turn them off. This is a great set for the price that allows you to turn them off/on and go through lots of settings with your phone. https://www.amazon.com/gp/product/B07PLNDJ2N/ref=ppx_yo_dt_b_asin_title_o05_s01?ie=UTF8&th=1

If you want the neon lights look of an 80s arcades, there are a lot of options on Amazon. You have old fashion neon signs and more modern LED based "Arcade" signs. A search for "Arcade Light" on Amazon gives you lots of options. https://www.amazon.com/s?k=arcade+light&i=tools&ref=nb_sb_noss_1

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The Arcade1up Pacman and Galaga ship lights are fantastic for the price, especially if you find them on clearance (I got them for $8 each) just be prepared to run some mini usb wires for power to them and they eat batteries fast. Their light up Marques they recently released are also pretty cool but at $60 each, there may be better options.

Personally I'm going with game themed artwork that matches some of the cabs. I have this TMNT and I have a 4 panel Mortal Kombat piece that should arrive this week and a 4 panel Infinity glove piece coming in next week that will go over the Marvel Limited Edition cab when it arrives. https://imgur.com/AQNFxhe

These can be found Beeshop and Mojo Canvas. Just keep in mind that these come from China so expect a near month wait for them to be delivered.

here

Laser projector:

DJ Disco Lights Party Lights, U`King LED Projector Stage Light with Music Strobe Light by Remote Control Great for Dancing Club Bar Pub Lighting https://www.amazon.com/dp/B07KD4LKWD/ref=cm_sw_r_cp_api_i_k5XtDbGZ0QTNZ

Led strip:

LED Strip Lights, L8star Color Changing Rope Lights 16.4ft SMD 5050 RGB Light Strips with Bluetooth Controller Sync to Music Apply for TV, Bedroom, Party and Home Decoration (16.4ft) https://www.amazon.com/dp/B07PLNDJ2N/ref=cm_sw_r_cp_api_i_Y5XtDbJS8A72K

Sound bar:

VIZIO SB3821-C6 38-Inch 2.1 Channel Sound Bar with Wireless Subwoofer https://www.amazon.com/dp/B00SMBG8QY/ref=cm_sw_r_cp_api_i_i6XtDbZFYC129

Tapestries:

Lucid Eye Studios Trippy Trek... https://www.amazon.com/dp/B07JN7FCNG?ref=ppx_pop_mob_ap_share

Flower Arabesque Tapestry Retro... https://www.amazon.com/dp/B07HBT7RDN?ref=ppx_pop_mob_ap_share

Would also recommend a fog machine, lava lamps, backlit/neon artwork. Oh and I did notice even with the laser and led strip on there wasn’t a whole lot of light on the tapestries so I’d say just for a bit more ambient lighting a Phillips hue would be a good investment. I’ve still got some stuff to do to tie it all together but it’s a good start lol

Lamps: https://www.amazon.com/gp/aw/d/B07QKB7TCX?psc=1&ref=ppx_pop_mob_b_asin_title

Led strip light:
https://www.amazon.com/gp/aw/d/B07PLNDJ2N?psc=1&ref=ppx_pop_mob_b_asin_image

Swiffer's are pretty great for cleaning floors and they aren't expensive. Also get a small vacuum for any carpeting. If you like coffee, definitely get a Keurig. If you're in an area that has cold winters, a comforter for your bed will be important (there are some really cute ones at Target). For when it's warmer out, having a small fan will help the air in your room circulate better. As for LED light strips, this one from Amazon worked really well for me.

Off the top of my head, $500 sounds like much too little for all of what you are asking for, unfortunately. $500 can definitely get you a decent enough PC but it probably won't have everything you want; especially regarding fancy lighting and low noise levels. If you're planning on buying everything new, then a half-decent monitor and Windows alone will cost you $150 or more, leaving $350 for the actual PC- sure you can get an ok pc for that much, but it definitely won't be running any games on high settings even at 1080p.

https://pcpartpicker.com/list/jjx7kd

This is what I could come up with for about $506 on pcpartpicker. It's a fairly decent system, but definitely not the prettiest. I also didn't include an operating system (Windows license) because a legitimate license costs about 20% of your whole budget. You can install and use Windows without a license with some restrictions (eg a watermark) until you can save up some money to buy a license.

I would suggest that you don't focus on the aesthetics of the build right now with your budget, and instead, upgrade later. The case I included has a tempered glass side so the insides are nice and visible. When you can save up some more cash, you could buy an inexpensive LED strip and stick that inside your case to immediately upgrade your style by +10. You could get a $20 led strip with a little remote like this one: https://www.amazon.com/dp/B07PLNDJ2N/ref=cm_sw_r_cp_apa_i_BGKpDbTYKD36X although getting the power cord in the case might be an issue. Alternatively you could get an nzxt hue lighting system which is designed to be put inside your case and can be controlled by your PC but that's much more expensive. The advantage of the latter solution is you can also add led fans and other accessories later.

https://www.amazon.com/gp/aw/d/B07PLNDJ2N?psc=1&ref=ppx_pop_mob_b_asin_title

https://www.amazon.com/L8star-16-4ft-Bluetooth-Controller-Decoration/dp/B07PLNDJ2N/ref=sr_1_10?crid=30GC2HQQCL7ZR&keywords=led+strip+lights&qid=1555445247&s=gateway&sprefix=led+%2Caps%2C425&sr=8-10

Rgb led Strip lights like these but solar. https://www.amazon.com/L8star-Changing-Bluetooth-Controller-Decoration/dp/B07PLNDJ2N/ref=mp_s_a_1_3?keywords=rgb+led+strip&qid=1573004353&sprefix=rgb&sr=8-3

LED strip lights. I found these at Menards on clearance last year for around $15. Still not a bad price on Amazon and lots of color options.

RGB led strip

Link to the led strips and the power box was self-made (explained in another comment).

Yeah it connect to my phone through Blutooth :

LED Strip Lights, L8star Color Changing Rope Lights 16.4ft SMD 5050 RGB Light Strips with Bluetooth Controller Sync to Music Apply for TV, Bedroom, Party and Home Decoration (16.4ft) https://www.amazon.com/dp/B07PLNDJ2N/ref=cm_sw_r_cp_api_i_FwnwDb9V0CMDZ