For personal use? I don't think so. I'm not a fan. I looked into things like drop box and the like.
The Data Center work uses, has about 4 tb of space from them via NFS. They lock things down via the export file, but I can see all the other users on that device.
For files, I mostly just rely on either my 8gig USB key (Micro Center is fairly cheap and has worked well), or being able to scp / sftp data from my boxes at home.