OH YE GODS!
Looks like my next addiction will be this game. It's made by the same folks who brought us Diablo, but published by id software. Its aimed for a Jan. 2007 release.
There are 2 classes at this point and time. Cabalist (mage like) & Templar (melee class). Pictured below is the Templar.
Homepage:http://www.hellgatelondon.com/No official system specs have been released, but I would guess a GeForce GS would be good enough. Also, it is my understanding that this game does not utilize dual core CPUs.
You can customize weapons, armor and use a 1st or 3rd person view to play the game. It has RPG elements in it (+10 frost damage, etc. etc.)