Webhosting Control Panels?

Rob Becker writes "I just started up a little webhosting company and I've noticed a lot of people have asked me if I have a Control Panel. After a little research I haven't found too many choices. The few that I come across are Plesk's Control Panel and CPanel3. I was wondering if any of the /.ers have used any of these or what they would recommend. I actually started to code my own, but unfortunatly I have another job and the time factor isn't there. It would be nice to have a premade one to take care of it for me." Now as much as tools like these can be a lifesaver in many situations, I have a hard problem with products that claim to do administration and that the users need "absolutely no Linux experience". Can these products really live up to that claim? Are there other, similar projects out there that are better than the two mentioned here?