Check out these,
Dell ST2420L -12k
Dell Ultrasharp U2412HM - 20k
The ST2420L is a LED monitor with a TN panel . Whereas, the U2412HM is a LCD Monitor with a IPS panel.
The ST2420L is a good buy and meets all your needs like Gaming, movies....etc.,
The U2412HM is a premium monitor with a Crystal Clear picture quality, way ahead of the ST2420L, this will come in handy only when you
are into Photoshop, pic/video editing, animation.....etc., where even the minute Hues & Saturations make a huge difference.