I can tell you that there are good deals online, but then there is always the shipping. Also, there is the fact that you would need to ship it back yourself when there is any trouble, so that means that you have the means to provide transport to send it back.
I looked up
ResellerRatings.com for a few of these "good" deals and found that the best deals were from e-stores with very negative reviews. As I wanted to reduce headaches, I went to Best Buy to see what they had to offer straight from the store.
At Best Buy, I bought a Sony Bravia XBR3 46" 1080P LCD and got these deals;
First, they asked me to sign up with my cable company (Comcast) for HD channels. I was planning to anyway. but they gave me $100 off for signing up at the store. (I believe it was $400 off with DirectTV for dish people.) I also got a $100 gift card.
Second, they gave me $200 towards either a $500 install of TV or $300 to install speaker wire for my surround sound that I also bought there. I took the latter and skipped the TV install.
I'm sure I could have saved some money elsewhere, but they offer in home service during the warranty period. They tossed in a $55 subwoofer cable and a a$150 TV mount on top of my purchase. They tried to get me to buy my HDMI cables there, but I knew they were over priced.
From this forum, I learned about
Monoprice.com and their low cable prices. I found good HDMI cables for 1/10th of the price of the Monster cables that they were selling at Best Buy. I also bought a subwoofer cable for $6, and I found a TV mount for $29.
Others may have other experiences, but I decided to go this route instead because I wanted the in home service (and free delivery). The deals were good too as I don't have the health to run speaker wire. The TV will be a bear, but I can get others to assist with lifting it as it is 80 lbs.
All of this occured within the past week as far as the buying goes. The XBR3 series is brand new. so they had to special order it. It will take a week (at least) extra to get it.
Hope this helps.