umm.. all bought canvasses are good. (but it's cheaper to make you own) don't buy expensive paint.. and watch your brushes cuz acrylic dries like no one's bizzness. oh and get some retarder, it's a medium that slows the drying process down.
if you can, go to the Stevenson's wharehouse @ Ellesmere and Warden, great paint and other suplies at wherehouse prices, and they give you %10 with a student card. very knowledgable and cute old ladies work there.
oh and there's a dog that's always there.. I love him!