Today I completed my move away from using Dropbox. At $100/year for 100GB it wasn't that it wasn't great or expensive - in fact I would save my aperture libraries to Dropbox for added backup security. I am simply trying to save money on my cloud subscriptions whenever possible and increase my personal and customers security at all times.
I found a new solution that works exactly the same as Dropbox, except it costs me nothing for unlimited storage and I host my own files.
What's my secret? AeroFS. It's Dropbox behind your corporate firewall. It provides three key benefits:
1) Unlimited storage
2) On your own IT infrastructure
3) Creating your own private cloud.
I have been testing out this solution since January and have been more than satisfied with it's reliability, flexibility and the great technical support.
AeroFS works on Mac OS X, Windows, iOS and Android.
My present setup involves two AeroFS Team Server clients. One Team Server saves data to an External 4TB drive, while the other saves data to a RAID 6 7TB FreeNAS ZFS volume. Both setup to use Block Storage, which provides compression and de-duplication of the data, as well as a host of other advantages, namely a way to obscure the data when at rest.
AeroFS offers the ability to share folders and to allow the most basic forms on data recovery.
If you haven't tried it out, I suggest you do. It's free for the first 3 users and its dumb simple to setup.