I'd like to submit Web Once to the list. http://www.webonce.com I use these and they're absolutely great. What I really like about them is that they have live support via IRC where you can talk to their tech guys 24 hours. If no-one is present then you can leave a message and someone gets back to you. They're really cheap and offer great service. I've had very little down time that I've noticed and can honestly say they're better than all the others I've used.