My brother just got a SAMSUNG 915N which he does alot of gaming on and he loves it. I tested it out a bit on his computer out of curiosity and everything look great. No ghosting in doom 3, half life 2, Unreal 2004. Those are the games I tested it with.
The only thing it missing it DVI connection.
If you must have DVI then get a HYUNDAI L90D+ but from what I seen it cost a extra $50 over the Samsung and it pretty much the same panel except it has a DVI option. All tests I seen shows the DVI has no advantage in this price range. You have to go up to the $800 LCD screens before having DVI makes a big difference.
I would save your self $50 and get the samsung unless you want to go up to the over $500 range. If you looking to spend over $500 then you have to do some resarch your self on what a good one is in that range.