Hello, im looking to buy a DSLR and so far i have looked at the nikon d40 d60 the canon xs and xsi. As far as i could see those are the main entry level dslrs. Wich one do you think i should get? Also i am kind of leaning towards the canons now because not all the nikon lenses have AF. Right now i have a canon powershot s3 is so im fairly familiar with canons interface. EDIT: I have 800$ canadian saved up.