I play everything I can get my grubby hands on. Crysis is a blast on very high, too bad the game wasn't that great. At least it was pretty!
My point though is that it's a well rounded card for a decent price. I've had no issues with lag at ALL while multiboxing and I don't see any issues other than lack of multi-monitor support.

I think if I were going for a multi monitor setup I would consider AMD over nvidia, or single gpu nvidia cards. All this time I had no idea multi-monitor was cutting off one of my gpus, yet it still shows up as two. That's great.