I've been to Utah well over 10 times this past decade. My advice for future trips: rent the cheapest 2WD car that will hold your entire group. Cost per person is negligible and you get soooo much more freedom to explore a bit, especially in Salt Lake City. If it snows, then take the bus up to the ski areas.
From Midvale, The Canyons is less than an hour drive (nearly all highway.) Very easy trip and the road up to the Park City area is a lot less affected by snow/avi closure than are the roads up to the Cottonwoods. Although it is a major trucking route, and you do get the occasional serious truck accident snarling traffic in that area. Enterprise may be a good choice for a one day rental since they'll pick you up (there is a location pretty close to Midvale.) I recommend either The Canyons or Deer Valley (no boarders allowed at DV.) Despite the cushy ref, Deer Valley has some nice terrain and you can often find freshies when the other areas near Salt Lake are skied off. Get discount tickets at Canyon Sports or The Lift House.
Rentals: the place that The Colonel mentioned is the Lift House (1/2 block west of the mouth of the Big Cottonwood Canyon on Fort Union Drive.) Canyon Sports is about 1-2 miles west of the Lift House, also on Fort Union. Both are quality places and should have some decent upper end gear (I've bought skis from the Lift House and have rented from Canyon Sports.) Canyon Sports is an on-demand stop for many of the BCC, LCC bus routes that head up Fort Union. Traveling by bus, easiest rental option with likely the widest selection is probably at Alta itself. Gold Miner's Daughter, the building where you get your lift tickets at the GMD base (name?) and The Deep Powder House are options that I know of. (DPH is on the access road between the GMD and Albion bases. On skis, you can best get there by taking the main surface lift halfway between the bases and then taking a second surface lift up the hill to the road.)
Myself and others who attended the Epic gathering are pretty familiar with a lot of the eats on Fort Union (will need some form of transportation.) Heading east from the Trax station:
- Bohemian Brewery - excellent brews and food. The Goulash was recommended by a local.
- Famous Dave - BBQ
- Lone Star Taqueira - just west of 2300, has a station wagon out front plastered with stickers and a shark's fin on top. Small dive, but excellent fish tacos and burritos.
- Porcupine - above the Lift House. Recommended by Tromano and the Mrs.
The Bayou(?), ~600 State Street in Downtown SLC is another place I'd recommend. Amazing selection of beer and some great Cajun cooking. It's a club, so one of you will have to join. Comprex, do I have the name right?
For Park City, be advised that many of the good restaurants require reservations. Plan ahead.