I have always been wary of cloud storage, I try to keep personal data personal.
Though it is not well liked, I bought WHS 2011 6 months ago for under $50. My reasoning: a permanent web address for my home network. If you didn't know, M$ gives you a perm .homeserver.com address.
The downside is that many apps have Dropbox (and clones) support that I do not have.
I used to utilize home FTP access but have been happy with WHS 2011.
Be kind in any replies, I know WHS is not the most popular tool.