if no image / video editing work is done, there is no need of IPS panel. So he can get a cheaper TN panel with bigger size. But if he wants to game with it, then I guess he might want to switch off the eye candies to play at its highest resolution.
Whats ur budget?
You can consider the foll.
Samsung P2350
AOC 2434PW
Dell S2409W
BenQ E2400HD, G2410HD, G2411HD, G2412HD
My Choice:
Dell 2209WA (e-IPS) Stunning monitor for all purposes including gaming with a mid-range card