There are monitors from Asus And Benq meant or designed for gaming, i can't remember the model of Benq now but the one from Asus is: "Asus VG248QE", i heard it is a standard for gaming now.
In all cases, if you really care about games a lot then skip IPS now and go for gaming monitor, later when you have another budget buy another monitor but IPS that time, so you can have both world, we can't guarantee you that if you get IPS then you may love it or have no issue with games.
Asus Rampage IV Extreme
Intel i7-3930K
Gigabyte Nvidia GTX Titan Windforce
Patriot Viper 32GB[4x 8GB] 2133MHz
H100i
Samsung 840 Pro 256GB 2x
Western Digital Black Caviar 2TB 7200rpm
Corsair AX1200
Cooler Master HAF X