Yeah, Doom 3 is awesome for the first 5 hours.
But the game is very repetitive.
But really, get FEAR. Both gamespot, IGN and PC gamer have rated it %92. It's creepy like The Ring, but the action is awesome. Each battle you have with the really good AI will leave the room your in absoutly destroyed. ( i mean windows smashed, walls destroyed, lights destroyed,) basically, its like being in a old John Woo movie, like the Killers.