first of all, what art are you going to shoot, big paintings, or small cellphones? maybe you want tilt shift lens (but in that price category, maybe not)
i think you should stay away from wide angle, because it can change straight lines into curves, so maybe 100mm macro would be nice.
I'm new to DSLR's, so please be patient and take my opinions with reserve. Thank you : ) Yes, i am Canon man. Google + My picasa photos My 500px album
Canon 60D + 15-85mm f3.5-5.6 IS, Canon 70-200 F2.8L
IS II, Canon 430EXII, polarizing filter 72mm,
Canon AT-1, 50mm FD F1.8