Pat just so you know you can go to Costco and tell them you're thinking of joining but would like a free pass to check out and shop the store for a day. I'm pretty sure they give out temporary passes.
I got my t.v. at best buy around the superbowl and got a great deal. One thing I learned when I was shopping was to keep an eye out for the contrast ratio and refresh rates; depending on what you're going to use your t.v. it could make a difference.