Recommendations for fur suppliers?

I'm considering building a costume for myself based on my character. Does anyone have any recommendations as to where to get some fake fur?

I'm looking for a few colors, but nothing too fancy. Some white, black, and tan of varying lengths would do the job. Otherwise I think I have a good idea of how to make one, and what other materials to use. I'm just not too sure who I can get some material from (in small enough amounts as to be for a single costume, and not too expensive) I saw some websites, (like imstuffed, and big4fabrics) but most seem to be kind of lacking in descriptions, or other information, so if anyone's had a good experience with someone, and would be kind enough to recommend them, I would be very thankful.