Please Where do I find LCD HD?

 was looking at the lcd TVs at target and they had some LCD HDs that where 37 inches and 42 inches that were under $1,000. The one I was looking at was a memorex 37 inch but it may be sony, i forgot. I just wanna know if the quality is low because of the low price. Where do I get a good priced 37 inched LCD HD TV that has 1080i,complete with high quality HD, and is under a 1000. Also are there any 42 inches under a thousand. Give me some direction because i dont know if i should buy at target.

PS.I have a xbox 360 and I need a tv that is fit for the BOX. THANX