Got my ASUS GTX470 yesterday.
My first impressions are, I am impressed with it.
I monitored temps slightly last night. My idle temps were around 58-60C when I've left my comp on for around 4-5 hours or so. Load temps were around 75C, with Crysis in the 80s.
Today, I put some MX-3 compound on it. This lowered my idle temps to 52C, my load temps were 68-70C, with Crysis getting the load temps to around 76-78C, so it lowered temps a lot.
I've not recorded any benchmarks, but I love the performance on it. Was running Crysis Warhead at 1080 res, Enthusiast settings for everything, and it played fine with no slowdown at all.
Was definitley a great purchase