When I went out to purchase my XBR (is that right) Sony over a year ago, I found that the prices were the same ($2,999 for the 32") right across the city. Apparently, Sony keeps a pretty tight lid on their suppliers prices, especially when they have their own stores being competed against. Where there was the odd deal was that in some stores, they would give you a break on the cost of the TV stand (woopeedo).
However, I did get a circumvented deal through Sears. If you apply for a Sears credit card, on your first purchase (no matter what it is), you get 10% off. That's $300. Then I just paid off the Sears card (don't forget to do that part..I think their, cough, credit is around 18%).
Its a great TV.