Krishant007:Foo: I'm in the same position, am looking at a 27", probably one of the four below (leaning towards the Samsung):
Dell UltraSharp U2711
I see you've mentioned a different Dell which does look better than the one I've mentioned.
Have you considered any of the above?
It seems the Samsung has the best response time and does well in other areas. I have been a fan of ViewSonic for quite some time, but might be time for a change.
edit: links added
I didnt really consider the Samsung. I looked at the price and was put off. I seriously considered the Dell U2711. Its price is roughly 1k so wasnt all that bad and it came with a lot of options in terms of ports.
But I settled for the U2713 since it has usb3 and LED which are pluses for me. The only advantage i saw with the U2711 is the better colour gamet. Honestly, I am an amatuer photographer so it wasnt too much of a big deal to me. I know professionals would not think that way so ya.
I considered the Asus as well since its 1k. But I think the Dell has better value.
The Samsung is currently only $1089, which seems pretty reasonable to me when compared against other monitors.