I did get the XK back last week before I went on vacation. I didn't drive it (saved me 400 dollars in gas) to colorado. I wish I had it there though. We got almost 6 inches on wed night which made my car pretty useless. I didn't bother driving it much when there was snow on the roads. My parents flew up there and rented a 4x4 liberty.
Thoughts on Liberty: Very heavy steering. Needs alot of skinny pedal to get it moving. At 10k feet it was wheezing like a wounded dog. My Jetta had some power loss too but the turbo just worked xtra hard to shove in more air and still was a blast to drive in the twisties. I do like the ability to turn off the 4wd on the liberty.
Pics:

Continental Divide! East meets West

Town of Breckenridge as seen from 12900 Feet

The last lift to the top. You had to take 3 different lifts to get to the top.

The ridge on the very top of Breckenridge. Not very wide up there. You had to hike/ski from the lift to get to this point! What a view