An update. You folks were nice enough to help me out with this place, here is what I have learned on my own.
Twin Falls is place is worth having on your radar. A nice smaller city of around 40,000 people and good infrastructure a couple of collages and a lot of nice people. After 6 weeks I'm starting to figure out which way North is. I walked out the door this morning and looked at snow capped mountain ranges to the North the East and South of here, not a bad way to start the day. The town reminds me a lot of Bozeman from about 1980 +/-.
Here are some of the important stuff I have discovered around here so far:
4 ski areas in less than a 90 minute drive ranging from Sun Valley to Magic Mountain. (Soldier Mountain is supposed to operate this winter)
good bike riding ranging from bike paths to desert single track (I lean to the milder side on this one).
GREAT GOLF! More decent courses than I can count for pretty cheap.
One of the worlds highest high dives (base jumping is legal off the bridge over the Snake River Canyon they estimate 30,000 jumps /year)
Water sports and plenty. The Snake River is the north edge of town.
Jackpot, Nevada is about 45 minutes south of here. CHA CHING!
Pretty vibrant economy. Some of the newer employers in town: Coboni, Jayco, Clif Bars, more coming. Seeing lots of 'Help Wanted' signs.
Weather seems a lot like Salt Lake City without the brown stuff in the air. It is called 'High Desert' here about 4,500'.
Pretty cheap to live here. (I am paying $825 for a very nice furnished apartment including utilities, which is cheap even by local standards)
Politically and religiously tolerant, not all LDS not all Republican (but that is how they vote)
Every big chain store in the world is here, shoot there is even a Costco.
Boise Airport is about 100 miles down the 80 MPH interstate.
More than decent medical (this is where Sun Valley flies badly hurt billionaires).
This place is a very good undiscovered ski town or western retirement town. I have lived in or spent extended time in a number of places popularly discussed for relocation to on Pugski (Denver, CO Springs, Bozeman, SLC, Portland, Seattle/Tacoma, Anchorage, Summit County, Spokane/Cd'A, and more I don't want to remember). Twin Falls has a lot of the attributes of any and all of those places, and its own sweet charms to boot.
If you are zooming through on I-84 you might want to take a look. Let's not tell anybody else though.