Replying to Help me out, Im going to Aspen

Im going to Aspen from Dec 9-15 and I have never been there so I was looking on some advice on what to do while there.  I think Im staying at Snowmass but I have some questions.  I assume that there buses that go in between all the resorts and that the tickets work wherever.  What are the best places to go when theres a pow day? for park? for just cruising some groomers?  Also, where are some cheap places to eat? 

Any help is appreciated, Thanks.