Go for a 19" dell E1909w...
It will have a decent resolution and if u plan to add a gfx card to your rig(as mentioned in the signature) it will be quite decent too...
Lg has a good monitor with 1440x900 resolution.. but the stand sucks big time..
Dunno about samsung models.. though..
BTW according to the siggy you have a 17" samsung...
If you like gaming.. keep that and buy a decent GFX card...