I will attempt to sum up a lot of the recommendations:
Connections: Make sure you get DVI-output; the clarity is amazing
Resolution: At least 1280x1024, 1600x1200 is nice, but the price jumps dramtically.
Response Time: 16ms and under is strongly urged.
Size: 17" and up
Brightness: 250cd/m
Contrast: at least 400:1
Keep this in mind: Statistics are nice, but try previewing the monitor, if at all possible.
I bought this on Newegg.com and have been thrilled with it. High definition videos look AMAZING on it.
http://www.newegg.com/app/ViewProduc...006-080&depa=0