gaming 19-21in LCD

My brother wants me to build him a gaming computer. For him money is not a big issue. He wants a LCD monitor. I have been hearing that for gaming LCD's are not a very good choice. So my question is: is there a 19-21in LCD that will preform aleast as good as the average CRT?
Again, for him, (bastard) money is not a big issue.

2600+ 266 FSB
A7N8X-E Deluxe
768 DDR PC2700
ATI ALL-IN-WONDER 9800 PRO SERIES
Maxtor 120 gig 8MB cach 7200
Western Digital 60 gig 8MB cach
Liton DVDRW +/- 4xrw/8xr/16x

Planed on atleast a gig of RAM. We are going the AMD 64FX rout though. When PCIe comes out with the with a board that will support 2 slots he wants dual Nvidia 6800 Ultra or the new card at the time. with 2 Raptor 10k drives in RAID, maybe 0 havent decided yet. then maybe another larger drive for storage. I think I have most of it put together in my head atleast. save 3 or so iteams. Monitor, he wants it water cooled. and case. As far as monitor, he does not want the biggest. Just something in the mid to larger range that will preform well. Not too much ghosting ect..


2600+ 266 FSB
A7N8X-E Deluxe
768 DDR PC2700
ATI ALL-IN-WONDER 9800 PRO SERIES
Maxtor 120 gig 8MB cach 7200
Western Digital 60 gig 8MB cach
Liton DVDRW +/- 4xrw/8xr/16x

So back to my original question, what do i need to be looking for in buying a LCD monitor? I think I found something good with Dell. 20in 1600X1200pix 60hz response time of 16ms and a 500:1 contrast. He mostly plays RPG games, so ghosting is not to much of a problem, just want him to be able to play faster games if he choices.

2600+ 266 FSB
A7N8X-E Deluxe
768 DDR PC2700
ATI ALL-IN-WONDER 9800 PRO SERIES
Maxtor 120 gig 8MB cach 7200
Western Digital 60 gig 8MB cach
Liton DVDRW +/- 4xrw/8xr/16x