Here's one more alternative to consider (not necessarily cost effective, but all the features in the world), get yourself an unmanaged VPS from a reputable ISP (me, I like
http://cloud9.net), or a dedicated machine if you've got the dough, pay up for however much space and redundancy and horsepower and bandwidth you want.
Then you can access your files not just through some sort of third party client or web interface but over SFTP or SMB on a VPN you could configure. Or some web interface, I'm sure there are plenty in every language I can think of. Like a custom rom for your Android phone? Show your appreciation and make the developer an account on your system and let him mirror his most recent few builds.
Make websites, start a little business, learn how to implement SPDY, SSL, HSTS, PFS, learn how to migrate a bunch of sites from Apache to NGINX, grab pyloris.py and learn python, figure out how to use iptables, learn for yourself if vi is better than emacs, learn how to generate a web certificate, configure different databases, learn the hard way why you shouldn't run the likes of phpmyadmin and so on.
That's all quite valuable to offset the cost ineffectiveness of going this route for quasi-cloud storage. On the other hand, 1TB for $9.99 ain't bad... so get both and maybe find or write some python script that syncs up your Google Drive to your VPS, bam!