Reddit mentions of Yongnuo RF-603 2.4GHz Wireless Flash Trigger/Wireless Shutter Release Transceiver Kit for Canon Rebel 60D/350D/450D/500D/550D/600D/650D/700D Series (Discontinued by Manufacturer)

Bare minimum, you'll need some extension tubes. Kenko's are always my top recommendation, but Vello's are almost as good for a much lower price. Both have electrical contacts for autofocus and work identically. Extension tubes are just empty barrels, so image quality will not be affected.

Extension tube magnification depends on the focal length of the lens being used. Since both of your lenses are 50mm, an FD to EF adapter will not give you ay benefit over using your EF lens.

If you're interested in buying a macro lens, it's actually quite difficult to go wrong, as almost all EF macro lenses are very good. Having said that, extension tubes are more than enough to get started with macro, so no need to jump the gun.

Macro lens recommendations:

• Canon EF 100mm f/2.8 Macro USM - Very solid lens for a very good price. Image quality is on par with the L macro lens.
  
• Canon EF 100mm f/2.8L Macro IS USM - Weatherproof and has IS. If you need any of these features, take the L over the regular canon macro. If not, the regular canon macro will serve just as well.
  
  Do not get:
  
  
• Canon EF 50mm f/2.5 Compact Macro Lens - requires an adapter to get 1:1 photos.
  
• Zeiss 50mm f/2.0 Makro-Planar ZE Macro Lens - A very expensive lens that only does 2:1 and has no autofocus. Good image quality but lacking for a macro lens.
  
• Canon MP-E 65mm f/2.8 1-5x Macro - A special purpose lens that requires special equipment to use. Definitely not for beginners.
  
  Since higher magnifications require more light, a flash is highly recommended. Any flash will do, but you'll want to be able to trigger it when it's not on the camera. Something like a Yongnuo RF-603 is a very cheap way to do that.
  
  You'll also want some modifiers for your flash. You can buy some (diffusers, snoots, etc.) or make your own.
  
  The most important thing, I feel, is a good guide for starting in macro. Macrophotography by LordV is pretty much the holy grail, and has a few tips on building your own modifier, if that's something you're into.
  
  

Indeed, with the Yongnuo Wireless Shutter Release Transceiver Kit . Inexpensive and reliable.

Yognuo makes some incredible flashes for the price - fully compatible with Canon, Nikon, etc. This is a superb flash, and this is the accompanying trigger for Canon 450D. There's a receiver built into the 560, but I don't think you can buy just one trigger.

Sorry, not sure if its worth selling them separately, the trigger are only $25 on Amazon ( http://www.amazon.com/RF-603-Wireless-Transceiver-Discontinued-Manufacturer/dp/B0099SGFZI )