S.D.
Colorado Springs is a great area - we lived there for a couple of years & enjoyed our time. You won't be skiing or snow tubing in the Springs, you'll have to drive somewhere to do that. In that area though, Manitou Springs is a great little eclectic town. It has natural springs (7 I think) that you can drink from throughout the town - the taste varies from spring to spring. Tons of neat little shops, yummy restaurants (The Loop is fantastic Mexican & my husband is from Texas so we're a bit picky about our Mexican food), and there's a short neat hike to a place called Rainbow Falls/Graffiti Falls/Painted Falls (depends who you ask) that's easy & short. Also, Helen Hunt Falls is a free hike.
Focus on the Family headquarters in there also & they have a great indoor play area with a 3 story slide & Whit's Soda Shop; it's great for colder D. when you don't want to go outside. The zoo is good & in late November they may already have their Christmas events going on. Pikes Peak is good & they run a cog train up ($) they also do a Polar Express type event but you have to buy tickets early & I think they are a bit expensive. Also, if there is too much snow/ice they will close the road up to the Peak. Walking around at the Broadmore Hotel is lovely. Glen Erie is amazing as well. Old Colorado City has an artists gallery with a museum in it that's fantastic but I can't think of the name right now.
OK, that's all I can think of right this minute but if I think of more I'll add it.