Have you ever bought a HDTV over the internet?

I’m in the market for a new one. My main concern is gaming. I don’t really watch TV all to much, but would love to see my PS3 perform. I’ve been looking around and see a lot I like but can’t afford. I found this LG 42LH40 42” for REALLY cheap. After 3–7 day shipping it’s just over $850.

….but I haven’t seen it before and I’ve never really ordered something of this magnitude over the internet before.
Suggestions?

Or recommendations? I’m looking for high contrast ratio, 1080p, low response time and I’m really unsure how much of a difference of refresh rate makes a difference, but I heard it may effect signal input speed, which equals bad for gaming. I’d like up to a 46” for under $1,000 although I’d probably go with a 32” if it has a fantastic picture for the price.