GT wrote:
I might end up in Boise on business in a couple of weeks. I might be able
to extend my stay a day or two. Any recommendations? I took a quick look
at Sun Valley, which appears to be about 3 hours by car. I'm an advanced
skier, but have never skiied out West.

-GT

Check out Bogus Basin and Tamarack.

http://www.bogusbasin.com/

http://www.tamarackidaho.com/

Of the two, Bogus is closer....

Jeff