I have a refurb 32" Westinghouse. It ain't that great. It does its job as a bedroom TV. If I were you, I would look at Olevia, then Vizio, then Sceptre, since the Sony, Sharp, Samsungs are pretty much out of your range. Mitsubishi and Toshiba also make good LCD's. (Below 42" negates plasmas and rear projection displays.)
AVOID the Polaroids at Wal-Mart. Many would say the same for Emprex and Ilo. However, I really will say to AVOID the Polaroids. I've heard nothing good about them.