We had been looking for a really good offsite and secure backup solution for all our Pro Tools sessions when we saw Gobbler a few months ago. We have been running the beta version and have to say it really is excellent. We are working on some pretty big jobs at the moment and to know that all the sessions are backed up offsite is great.
Anyway, they are about to reduce their free 25Gb account down to 5Gb starting on the 7th December, I think because they are about to officially launch. If you sign up before the 7th you'll get 25Gb FREE for a year.