In the market for an LCD television? Make sure that you get one which has computer inputs (VGA/PC or DVI). Run a cable from the TV to your laptop and work on a second desktop.
According to an article in USA Today, having the second monitor increases your work productivity by as much as 50%.
I've used dual monitors for almost a decade, and I can really feel the slowdown when I have to work on one screen.
If you would like to try using a dual screen with your laptop - simply borrow any LCD monitor and connect it to the external video port. On my campus website I have added a link to provide instructions.