here's what i've been working on in my spare time lately. the pic serves as a link to a larger image which shows off more facial poses.
for this characters head i've only used game-engine compatible stuff: alphamaps, normalmaps, specular and gloss. the facial rig consists of bones and no morphs, the hair is animated via clothsim and baked down to bones by the press of a button. the head with hair, eyes and mouth interior counts up to around 4500 or so triangles.
i've already started animating a small sequence and will post it as soon as it's ready.