I use the Nostromo by Razer/Belkin and am loving it so far. It takes the WASD cluster and a few others like tab, shift, ctrl, caps-lock, and gives them to you in a nice neat package. You also have a D-Pad by your thumb which you could do all kinds of crap with (batarangs and bat-claw in combat for Arkham Asylum, skill usage in Monday Night combat, switching weapons in TF2), not to mention macros (flamethrower + axtinguisher in TF2 come to mind). It's like a keyboard without the keyboard.