I ran a very successful Unisystem Fantasy game using the WitchCraft main book and GURPS Magic. Most of the rules for non-magic stuff are already in print. When it came up on another forum (a mailing list I think) CJ gave me a few pointers on how to setup Magery and use the GURPS Magic Spell List as a basis. When I get home and can find the notes I can post them here if they are still needed. I didn't use non-human races much so I didn't do write-ups on them so no help there. I think I have seen someone post a link to a Unisystem Fantasy system they wrote up for their website.

All of this is of course just getting me by until the above mentioned books come out. :)