Started folding last night with machine in my sig. I only have internet access while I am at home since I use my phone as our home internet. So it won't be running 24/7, but should be able to get a solid 12 hrs out of the day minus the time I use the machine for work and play.
BOINC is, in contrary to F@H, able to cache the work on your harddrive. (BOINC can work even without internet, but workunits have to be downloaded beforehand)
You could run BOINC while you're away, then uploading the results when you get home and start F@H.