I just discovered Nature's Flavors, which has all kinds of gems such as vegan (often organic) flavorings (mostly fruity stuff, but also butter, caramel, and shrimp flavors!), food-grade cocoa butter (homemade chocolates or white chocolates, anyone?), vegan coffee creamer powder (crazy cheap!), and oodles of other stuff.
Edit: Wow, the products may be well-priced, but the shipping is crazy (starts at $8.50 US)--be sure to consolidate your orders!