I currently have a Dell U2311h as my external monitor to use with my 11"MB Air. It works great, but I plan on upgrading my 32" vizio to a new 47" LED LG. i figured if I am going to upgrade my tv, i could use it as an external monitor at times . What is everyones thoughts? I wouldn't use it all the time. I want to sell the dell because my MB Air sits on my desk 80% of the time because I have that monitor, and if I were to sell it I would be obligated to use its "portability" and only connect it to the LG at times when needed.