I wouldn't buy an LCD without a killer refresh rate even if I wasn't going to play games. LCDs with a higher-than-20ms refresh rate ghost during Windows browsing, not just games. I've also noticed the black/grey problem that aoeuhtns is talking about on more than one LCD. The LCDs are simply not capable of being at the same brightness/contrast level as CRTs. No matter how much I changed the settings, the LCD always had a dim, washed out look. All of these problems can be averted, but not without spending a ton of a nice LCD.
That being said, I'd buy the Trinitron with the warranty. Warranties rock.
-Lasereth