Right now I am rockin' a 1280 x 1024 19" Dell monitor that has a pretty good picture. I use this monitor mostly for browsing the web and regular computer use.
I have a HDTV, for when I want to play pc games, and it looks great through HDMI.
So since I don't really NEED another monitor, seeing as how I have an HDTV, is there really any good reason to get one?
Is there really enough web content in widescreen that my web surfing would be greatly improved by such a purchase?
As it stands right now, my 19" Dell fits perfectly on my desk. A widescreen would probably require a purchase of a new desk.
i don't think purchasing a bigger monitor would help for web browsing, although if your HDTV is 24in+ and 720P i'd recommend getting a 1080P monitor atleast 23in wide. big 720P TVs look really bad because of the size/pixel ratio. a 23in 1080P monitor would look great for gaming.
to sum it all up, no. do not get a better monitor just for web browsing.