Well after playing around with my new vg248qe, I must admit that I love it. At first I just tried 144hz and that was a great improvement, however when I enabled the lightboost hack I was blown away. Well actually my enemies were blown away to be more precise
I can spin 180 degrees and back very quickly now and pick up targets with ease. If you're looking to improve your FPS skills, this is without a doubt a huge improvement. The colours were pretty horrible when I enabled lightboost, however the tips from mdrejhon helped out a lot. When in game I don't even notice a difference in the colour now, and when I'm done gaming it's easy enough to turn LB off by switching resolutions.
The only gripe that I can think of is that at 24" I can notice the lower pixel density than on my old 21.5". I sure am glad that I didn't go for a 27" 1080P, as I think the pixel density would have been too low for me with my setup.