For Extreme Gaming, CRT is better than LCD. go for Syncmaster/Acer CRT.
You can easily get a 19" CRT for this price.
CRT Monitors:
Pros:
Multisync Capable
High Refresh Rates
Color Clarity and Depth
Cons:
Very Heavy and Large
Use Large Amounts of Energy
Generate Excess Heat
LCD Monitors:
Pros:
Smaller and Lighter
Energy Efficient
Causes Less Eye Fatigue
Cons:
Blurry Images Outside Native Resolution
Motion Blur on Fast Moving Images
Come Models Have Reduced Color Clarity
As you can see, LCD is better than CRT in terms of space. If clarity is your prime req., go for CRT.