For FPS, low input lag is a huge advantage. The Asus 24" 1ms 144Hz monitor that several of my buddies have - they swear by. I have a hard time getting the jump on them. I use a Dell 1920x1200 IPS.
-Bruce
i have a phillips 144hs 1ms an for gaming f you got the graphics power for it its better for gamng over ps no lag time especially f you turn v sync off he he speed advantage ever get killed going wtf?!!!?? thats why response time an vewable frame rates