[Zope] Portal system similar to my.yahoo.com

Hi all, I'm looking for a good base to build a portal system and wonder if Zope is it. Basic requirements are... - my.yahoo style home page feature without all the news feed stuff, just our own widgets in portlets. - portlets can be added/removed by user. - user accounts with roles limiting which portlets may be added. - skinnable I've looked over some of the docs for Zope and CMF. What I haven't seen yet is a description of how to set up an editable home page with portlets. Is Zope what I'm looking for? Thanks!, boz