If you're already planning weekend getaways, consider heading east to "Montana's Badlands". Areas around Glendive, Terry and Jordan provide an incredible amount of interesting terrain for all abilities.
Great reggae is ALWAYS a good idea, especially in the middle of a Montana winter. The Original Wailers with Al Anderson have January tour dates in Billings AND Bozeman so you can get your fill. We've got all the show and ticket information here.