Here are some free fonts from Fonts.com. Usually there’s just one free font weight per family, but you may find just what you need… Check them out here.
60 FREE high quality fonts. Paid fonts as well. Visit FontFabric here.
Check out Lost Type Co-op for some awesome fonts. The fonts are “name your price” fonts and you can pay what you want. Some fonts have minimum prices to use them commercially. Check em out here!
The League of Immovable Type is a great resource for high quality free open source fonts.
Visit the exljibris site and check out the “Free Fonts” and “Some Free” sections in the left nav for some high quality free fonts.