Wanted: login and CMS system with a twist

Hi, all -- A client of mine wishes to create a web site which does more than just the typical CMS functions in that what you can see not only depends on whether or not you have an account but also how old your account is?). Of course, I'd prefer that it is written in PHP :-) Any recommendations? TIA & HAND :-D -- David T-G davidtg@justpickone.org http://justpickone.org/davidtg/ Shpx gur Pbzzhavpngvbaf Qrprapl Npg!