David,
Echoing Steve's comments, see my recent entry in the Trip Report section where I included some suggestions: "Trip report - Main Trail, Nov 11, 2012, dayhike" While you might have more snow in Dec/Jan, many of the suggestions will still apply.
Feel free to ask/post any questions. It would also help to let us know your experience in similar hikes/climbs and background with gear, snow travel, etc.
Good luck in your planning.
Rob
