Actually, I wouldn't spend any more than $20.00, if you can avoid it.
I bought a cheesy little Gigaware USB 2.0 webcam off-the-shelf, and it's worked fine everywhere I've used it. Including Debian, Ubuntu, Fedora ... and Windows.
None of these are the exact model - but those in the $15.00 - $30.00 range should give you an idea of what I recommend looking for:
http://www.radioshack.com/search/ind...kw=webcam&sr=1
'Hope that helps .. PSM