Yeah, if you are getting a TV and computer monitor all in one, thats fine, however as the other poster said, i'd got with a 1080p resolution. You'll never use 1080p on your TV anyway unless you watch blu-ray movies, but 1080p is a great resolution for a computer screen. Less resolutions are also fine, but if you go for a 1080p TV, not monitor, you might save money on the TV and it will expand your selection by huge amount on what to buy from.
For example, I'm not sure if this brand is good, never had it, but here is an LED-LCD for around $200http://www.newegg.com/Product/Product.aspx?Item=N82E16889611020
Yeah yeah, plasmas technically are considered to have the best picture due to contrast, best blacks...etc, but a good LCD, LED, or DLP will have a contrast that good enough that you would really need to pay extreme close attention and compare the two side by side to notice any difference in the blacks (At least for me I do, I'm not a videophile). I'm not sure if LED's are prone to Burn-IN (Haven't done my reading up on them yet), but LCD (LED-LCD) is the only TV (I'm not sure about a real LED) that you can get of a small size, doesn't burn-in, makes a great picture