The other day I was looking for a good free or cheap uk proxy for a scraper script I was writing for a client. My goto proxy was an ec2 micro instance in the Ireland zone, but for some reason this wasn't good enough so I went hunting around for one based in England.
I found a lot of free listings (xroxy.com) but all the http/s proxies on the list were either down or not in uk like they claimed.
Then I found these guys, $4 for a month - I decided to take a chance.
I decided that I'm happy with the experience, a fast connection that doesn't get blocked by some of the sites that will block ec2 traffic.
Watch out for the recurring charge though. I noticed that they will keep charging me until I cancel.
Oh yeah, I am not affiliated in any way, blah blah blah.