Yeah that's probably the best choice for your budget (it has Displayport and DVI-D inputs, allowing older cards and newer cards to both be supported). Depending on the games you play you will see a large benefit. Many modern games you won't hit over 60FPS, but lighter weight games and older ones you will get 100+ FPS.
Even if you don't hit higher framerates, the blur reduction and faster response from a 144hz monitor is nice.