Looking around for Diablo Style RPG.

I've been trying to look around for something akin to a Diablo style RPG but so far i'm drawing blanks. Naturally this would be easy but heres the thing: I'm looking for a Diablo Style RPG that has graphics on par or better then Titan Quest(it makes me feel shallow to say that), with good enough gameplay to boot. Just to clarify as well, i'm doing this on behalf ofa friend who named that particular part of the criteria >_>. Games that cannot be recommended (because i tried to get him to play them to no avail are):

The Witcher

Titan Quest+TQ Expansion

So if anyones got anything feel free to contribute.

I guess you have to wait for Diablo 3.

You aren't going to get much better than Witcher, but.. as SpaceMoose said, try Sacred 2. You can also try Spellforce, or Spellforce 2 ... but that series is RPG mix RTS. Dungeon Siege II is also another option, but it's inferior both gameplay and graphic-wise to Titan quest. Still, it can be very fun with a few people.

I friend of mine plays Titan Quest. It is a lot like Diablo.

alien shooter vengance, fate, NOX,

There was silverfall, it has cell shaded graphics which weren't hideous. I couldn't really get into that game much though.