This Monstrous.com looks like a fun site, even if their selection of monsters is a bit narrow.

They did remind me of the criosphinx though, which I love, but had forgotten about. Criosphinx is definitely the coolest kind of sphinx

Also, theres some fantastic line art images of mythological animals at this site, which are just crying to be chopped up and turned into occult tattoos. Gotta download these when I get home.