i'm looking to buy either the canon xti or xsi. both are good cameras so the deciding factor for me right now is the price ... ritzcamera has a discount on the xsi for 799$ flat. circuit city has the xti for 693$ (with tax). now, which should i choose? i already have SD cards with my previous canon P&S so i don't need to buy additional memory whereas with the xti, i'll have to buy CF.
anywhere else online with some great deals? i was reviewing this thread last night and was so bummed when i read the xti's were cheaper before! this will be my first dslr camera. i also checked out the nikon d40x & d60 but chose a canon because i'm a bit more familiar with their menu settings. i'm looking for a camera where i can grow into as well if i decide to pursue more into photography

thanks in advance for any help/comments.