There are the pre-painted plastic shifter miniatures from the Wotc D&D mini line.

As far as metal minis that haven't been mention yet, how about some of the reaper miniatures vampires? Some might need a little greenstuff to feral them up a bit, but quite a few of them could be used as is; but with a brown pain job.
02221: Morrdha Vampire Lord - Would make a nice Warrior scholar shifter.
02290: Fenris The Pale - could cover warrior, barbarian or what have you.
03042: Morrdha, Vampire Noble - Another sculpt of this fella. Pretty Feral looking, but with a book.
03383: Vampire Spawn (2) - Both of them would look pretty feral with the right paint job.