Dude, if I were more of a hard-core gamer I would be all over Mirror's Edge. According to Wired, it effectively hacks proprioception, meaning that when you run, you as a gamer feel like you're running. Unfortunately the game is from EA and has gross DRM malware. You know what that means. I still have to beat Chrono Trigger, FFVII, and Beyond Good and Evil (oh, and I haven't even started Deus Ex).
See youtube for gameplay shots.