Heres my suggestion, find a TV maybe a floor model thats 27 to 32 inches and not HD, for like $2-300. It will fit the room better and when you're done with college it can either become a second tv and you can spend the $2,000 then with better bang for your buck.
you probably won't listen to this, but I just know that going into my senior year I thought about doing this every summer and realized that its worth waiting for, because well the tv is great for watching sports and tv, but well college is about more than a good tv, much much much much more.
and do your own research, that will probably take a month given your budget this isn't something you should buy on an impulse.