I don't think you're going to find a really nice 19" LCD for gaming for at least a few more months. From what I've read, if you're looking for some sub-20ms pixel response time, you'll need to get a 17" LCD. The only one that I know of that is on the market right now is the Hitachi CML174 (17"), which has a 16ms response time (roughly equivalent to 60 FPS).