As stated above, response time is the biggest issue for LCD's. A high response time (anything above 16ms) will cause ghosting, which will drive you nuts when gaming.
You also want the smallest dot pitch you can find...
Dont sweat refresh rates, they do not matter with LCD's
Most namebrands are good, but you will find they hurt your wallet too. BenQ has been an up and coming brand...Viewsonic of course is good, NEC also makes great LCD's.
Retirement isn't all it's cracked up to be