I'll ask around for a good shop. Most places there are snowboard friendly. A couple shops are in Telluride and Mountain Village. Boot Doctors in MV seems pretty decent the few times I have been in there. They have a whole room for snowboarding. There is a guy that hangs out in MV and does wax jobs and from what I hear he does well. I went up for my first day yesterday and was kinda disappointed, don't get me wrong, I love that mountain and this is my 3rd season riding it, I have just been spoiled the last 2 years with the snow. There were 17" of fresh on New Years Eve, and it was skied off by yesterday. Powder was still plentiful in the trees though. I went with a buddy who went on New Years Eve and said it was much better. The Telluride side had tons of powder in the trees. The snow also got skied off due to the fact that the week between Christmas and New Years is their busiest and I usually avoid it. Lines will not be existent while you are there.
Prospect Basin is mostly blues and greens, but has some of the best runs and tree riding on the mountain. Lift 4 and 5 get the most traffic but are good early on a powder day. Hopefully it snows up there this week or a storm comes in by next week. If you like steep, lift 9 and 8 are good for that as is Revelation Bowl. You will love it there!