Since you have your own machines, you're not limited to places that rent sleds. For new riders, I'd reccomend Vail/Shrine Pass. Lots of trails and you can ride to Redcliff for lunch (better than cold beef jerky and half frozen Gatorade to keep your wife liking snomobiling).
Georgia Pass, out of Jefferson or Boreas Pass from Como is pretty mellow and close to Denver. Can get to from Breck side as well. Lots of nice scenery and good roads, no grooming except on the Tiger Run side of Georgia Pass where all the rentals run. Both of these, just drive N out of the respective towns until you want to dump the sleds off and go.
Grand Lake has tons of trails and good town for eating/accomodations.
Church Park, out of WP or Fraser, lots of trails.
Winter Park/Corona Pass/Meadow creek (turn R off of 40 before getting into WP at the Dakota??(Lakota) Ridge subdivision, can park about 3 mi in., PM me for directions), lots of trails, no powder unless you ride trees or the weather is good enuff to go over Corona Pass. Grooming was awesome there last week. Not a bump to be found except for the short ride in from the parking lot to the main trail that is never groomed.
Hope this helps.
