Web Administration Tools For Hosting Web Sites?

ckm asks: "I work for a company where we support hundreds of Web sites. These are sites we own, but are run by contract Webmasters. So far, we've been hosting the sites at various companies and relying on them for tech support and management. We'd like to move towards hosting these sites ourselves, and I've been looking around for 'control panels' that are similar to what's available at the hosting companies. Everything I've found so far is either too complicated, too primitive or too expensive . Are all of these companies writing their own Web-based site management tools (for stuff like e-mail, httpd, forums, etc...)? Keeping in mind that most of our end users are quite un-technical (Webmin is definitely too complicated), does anyone have any ideas, solutions?"