Check out
http://www.rockymountainblue.com/. The Liberty Pass is a good deal for Keystone/A-Basin if you're able to get enough days on snow to make it worthwhile. Keystone, Breck, Vail and Beaver Creek all have discounts, though I'm not sure how much they are these days. It looks like the discount will save you $30+ a day at Keystone, it is probably comparable at the others.
If you do Squaw again and are looking for variety, you can get cheap tickets for Heavenly, and Northstar is free on Sundays. Mammoth and Kirkwood also both have decent .mil discounts.
Almost every Utah resort has awesome season pass deals for military, so it stands to reason that single days have appreciable discounts as well. I remember Alta having a good rate a couple of years ago.
In Montana, Grand Targhee gives out a full day ticket for half day price and usually has good early season snow. As far as Wyoming, Jackson Hole is pretty military friendly as well.
Of course, all these deals fluctuate from year to year...hopefully the economic woes haven't forced any cutbacks on the deals.
I know you said out west, but if you can make it to Europe, Edelweiss in Garmisch (
http://www.edelweisslodgeandresort.com/) has really reasonably priced ski packages. Plus, Zugspitze is pretty cool..
Pray for snow!