I went to market to buy the dell 1909 today, but couldn't find it anywhere so I bought the Samsung 2033SW(@7k) as it was my second choice.
I am not happy with my purchase since I don't find it eye freindly. The hp 20" I had seen was eye friendly and bright enough at the same time but it would cost me 9.5k.
EDIT: From my experience I recommend the 20" 1600x900 size as the entry level desktop monitor. Initially the fonts appeared too small but all these fonts can be set to any size one wants them to be.The 20" 16:9 has got the same height in inches and same no. of vertical pixels(900) as the 1440x900 - 19" one, but it has 160 pixels more in width, which comes almost free. That is very handy when one is working with two windows side by side, or during watching movies.I am sitting in front of it and it feels very big, so unless someone requires more vertical space or full HD resolution, this screen size is the optimal choice.