1. I wouldn't exactly put a Panasonic in the low end category, i would more so put Kuro in the elite high end category and the Panasonic in the high end category.
2. to decide on the decision between plasma/lcd you need to provide a little more info(viewing distance/ angle, and if his bedroom is very bright or a cave).
3. if he is not looking for the very best he may not need 1080p(does he plan on getting a blueray player). money saved could get him a bigger 720p set or just save him money. of course this depends on how far he is sitting/laying away from the tv. i know in my bedroom i would never be able to tell the difference between 720 and 1080 on a 46" laying in my bed.