Quote Originally Posted by Doug
OK I am thinking about getting the Canon Speedlite (420EX) Flash I am wondering if this is a good choice? Thanks for any input in this! Is there anything special I should be looking for? Can the Rebel do the TTL on this flash? Thanks!
The 420EX is a fine choice for this camera. The prices on these are coming down because of the new lineup of EX flashes coming out (the 580EX being one - egad, what a flash).

It is fully compatible with the Rebel, and TTL is supported.