I've heard nothing but good things about
https://www.privateinternetaccess.com. Costs $35 per year and they accept bitcoin.
I don't use them personally, but I plan on switching to them when my current VPN expires
I started using Private Internet Access (PIA) recently. Like the service and selected it because was well liked on TorrentFreak.com. I don't torrent anymore, but those guys seem to know what they're talking about when it comes to privacy.
Anyways, its been working quite well, I use it on my Nexus 10, wife's Macbook, and my Win7 desktop all at the same time. I believe you can have 5 simultaneous logins to support your many devices all at once.
The only complaint I have is that the download manager I like to use, JDownloader, doesn't connect/work right when PIA is running...so I have to turn it off then.
Hope this helps!