I really wish I could convince everyone to try Witopia.net. My previous vpn company let me down and started getting refused by certain US sites because it showed up as an anonymous source. Worse, it suddenly wouldn't work at all and they told me the problem was on our end when nothing had changed.
Witopia. net is actually cheaper than the previous company, the service is 1001x better and the staff are incredibly helpful. I'm a technodinosaur and their rep walked me step-by-step through the process until it was set-up. He was unbelievably patient in spite my ignorance of basic computer 101.
Just a terrific company period!