I want to buy a new LCD monitor

I want to buy a new LCD monitor for my office use. I want a high class monitor.
So I checked many websites for this. And I found a list of new monitors. I want some ones opinion before I buy.
My list is given below
- HP 2311gt
- Samsung SyncMaster S27B970
- Dell UltraSharp U2412m
Pick one from my list, which you think is the best.
