but take time to choose a model that suits your requirements. One issue with gaming can be the 'lag' time that arises in some cases, and you'll need to check that out. Otherwise you'll be very impressed.
I do a fair bit of graphic and image work for clients, and I was a confirmed 21" CRT monitor user until about a year ago, when I got my first AOC TFT screen. The display quality astonished me, and since then I've acquired three more TFTs for my office. I'm currently using a 19" LG screen, and the display quality is simply the best I've ever used - CRT or TFT.
Take time choosing, and if possible get some feedback from other gamers before buying - then plunge in.