For hard core gaming it is usually recommended to go with a CRT monitor. You just missed the after Thanksgiving sales on LCDs. I picked up a 19" that had a $220 rebate.
All three of the LCDs you noted are great and I wouldn't feel bad owning either one.
Techie23 you are correct. On the CRT, the black bands that you have on both sides of the screen eat up about 1" of the screen space. Note that your LCD doesn't have these black bands. I replaced my 19" CRT with a 19" LCD and let there is more actual screen space on the LCD.
3 different OS, so yep I\'m confused.