I'm looking for a CMS that will give me wide opportunities with personal cabinet. Adobe.com personal cabinet contains all I need: ability to track purchases and see purchase history, to buy services and track subscriptions, see the status of a purchase. It sems that billing system for us will be made by another service (Dig.River)? so there should be an ability. Is there any help for me? Is there any CMS that are used by vendors like Adobe, Sun, IBM?