It should work, but I wouldn't expect great performance out of it.
Just make sure you have fairly up to date drivers which in this case means going to www.voodoofiles.com and finding a good set of 3rd party drivers because 3DFX don't exist anymore.
that's what i had, but had to go and get a new on (radeion 9000 64 megs..) i needed a new card anyways, so it was a good buy... but live wont work w/ vodoo