Save up and get the brand new 600D
. It's a DSLR and HD video recorder in one. The 500D and 550D also have video recording, but the new 600D has a cool swivel screen (much like a handycam) where you can fold it out, pivot and turn it to any angle. It makes seeing the screen whilst down low to the ground very easy. Will definitely be my next purchase for sure, although by that time the 800D will probably be out 