Mostly for games and schoolwork and probably some rendering as well. I don't suppose that really counts as photo work though.
These are probably your best options for around $300 or less:
BenQ FP93GX: 6-bit TN, fastest LCD available today, mediocre black level but only around $200
Samsung 940BF: 6-bit TN, almost as fast as the above, decent black level
NEC 90GX2: a decent TN panel that has the outstanding Opticlear coating; excellent daytime black level; good viewing angles; very good speed but not as fast as the above two (I have one of these)
VX2025WM: 20" widescreen with a higher quality 8-bit S-IPS panel but still costs around $300; good speed and accurate colors, but a lot of people seem to be having some kind of DVI related problems with it
Too true, but it's huge and would offer some ridiculous bragging rights. Although, you know what they say about men with really huge monitors... 
Well, for bragging rights I think I would rather have one of those old IBM T221s with their insane 3840x2400 resolution, or the $50000 Brightside HDR display.
