Been toying with Bitcasa
Supposed to have infinite storage but I just don't see how they can do that so not really putting a lot of trust in that, but with Windows 8, it integrates pretty well (alhthough - no out of box support for it from them yet), and it works good from what I can tell. I personally don't like putting my data into public servers (such as Mozy, Carbonite, Bitcasa, and the like) for those just in case moments when a hacker could break into their servers. (You never know anymore). I have yet to test a trucrypted container to solve this with Bitcasa, but everything I have thrown at it so far seems to be pretty good.
Of course, if you want TOTAL control over your data, just pick up a throwaway PC on Craigslist or your favorite site for free or under $30 and build your own NAS and lock it away somehwere out of site.
(I have that right now for most of my files).