Word of advice, since your buying an HDTV do not buy whatever HDMI cables they have in the store. Stores jack the prices up like nobody's business when you can get HDMI cables for cheap. I bought a 26 inch 720p HDTV for my bedroom and I bought two gold-plated 3' HDMI cables online at monoprice.com for 12 bucks (including s&h). There's practically no discernable difference between what I have and what they'll try to sell you instore, other than the ones in store can range between 40-200 bucks. Just a link for further review:
HDMI and HDMI Cables: CNET's Quick Guide - CNET Reviews