I grew up in Buffalo, 30 miles south of Sheridan, lots of my family still lives in the area.
It's a great great great place to live. When I was younger the economy wasn't great, based mostly on tourism, but now there's a natural gas boom and they can't find people to fill jobs fast enough. You'll have no trouble. In fact Gillette's been offering incentives for laid-off detroit autoworkers to move out there just to fill jobs.
Lake DeSmet is close by, the mountains are VERY close (lots of great locations near both Sheridan and Buffalo), and you can drive to Billings or Casper if you need to do any serious shopping.
If I could find a job in my field that pays what I'm making now, I'd move back there in a heartbeat. My advice: Live in Buffalo and make your husband commute to Sheridan. It's a 30 mile drive, all interstate highway and no traffic.