It's always nice to have some related music in your ears when sitting in front of the computer hitting F5 waiting for updates. Here are some tips:
Kyf Brewer - Songs For Mushers ("Pretty Sled Dogs", "Home", "I Run", "The Huskys Code")
Stuart Hamblen - The Spell of the Yukon ("Make Believe Bay", "Mush")
also
The Incredible String Band - anyone of their titles work fine, although they are not about mushing at all.
I also recommend an instrumental piece by electronic jazz favourites Red Snapper called "Alaska Street" from their album Our Aim is to Satisfy.