Going HD in the bedroom

Ok so im looking for a good HDTV for my bedroom. I will be playing Xbox 360/watching DVD'sand watching satellite and local stations on it. I've been looking through circuity city andbest buy and im seeing brand names like LG and Samsunggoing for around $450 for 19". Im also seeing brands like element and insignia going for around $450 as well for 26". And then im also seeing polariod and element 19"s for around $300. I basically want a TV that will show the difference with my games and stuff because it is HD. My limit is $500. Should i stay away from these 26" $450 TV's? Will paying more for those 19" main brand tv's make a difference?

Any input appreciated, thanks.

i say you go with this:

http://www.walmart.com/catalog/product.do?product_id=5623471

19 inches is way too small for you to actually enjoy watching movies and playing 360. This 26 inch will be alot better.