FWIW I just bought a 37" RCA and I'm very happy with it. (from Walmart as well)

None of the Emersons that they carried had all the features I needed like VGA in. I'd also looked at the Samsungs but they were significantly more expensive and the picture quality wasn't noticeably better.

Walmart has 2 day express delivery service here for only 97 cents if you order on line. Don't know how they can do that.