Alienware AW2310 or HP ZR24W or SAMSUNG XL2370-1

Looking to move up from an old Dell 20" 2001FP. My uses are mostly MMO gaming, web surfing, and casual photo/video (pictures of the kid for the extended family). I'd like reasonable color fidelity and response time in something in the 22-24" range.

I went to TFT Central and they suggested either:

Alienware AW2310 ($374 w/incentives)

or

HP ZR24W ($387 w/corp discount)


After trolling these forums it seems like this might be a reasonable option as well:

SAMSUNG XL2370-1 ($299)

Any input as to what would serve me best?

Thanks in advance...