1) NEC LCD2490WUXI-BK - H-IPS, best panel type, better colors and everything. These are like $1000+ or so.
2) BenQ FP241W - Tons of inputs, DVI, Composite, VGA, S-Video, Component, HDMI. Make sure you get Sept 2007 model, NCIX has the newest I believe. These run around $550-600. I have this one, it's great. These are being discontinued soon, so get them before they are replaced with TN panels.
3) LG L245WP - No DVI input but has most inputs. Good reviews as well. Can find them sometimes around $450 if they are on sale. Around $600ish otherwise. Make sure you get the latest model as well. I think there were issues with VGA not running 1080p resolutions. No clue where the best place to get them are. Best Buy usually has them on sale.
4) Dell 2407WFP - Was going to get this, until I saw the others. But this is something you should go with if you can't seem to get any of the others. Get the non-HC model, not only is it cheaper, but the HC has some sort of ghosting problem. (Even admitted by Dell and they won't be fixing them)
All of these have good reviews.
If money is no object then the NEC. Otherwise the others are fine.