>I would suggest that you use the Session base class for your business objects. That way every business object can have a private data session. Then just use the business objects to access the dat and let the containers just be visual thingies.

Agree 100% here :)
Everything except BO code (session objects/prg) is just bunch of visual 'thingies' . Less code on those 'thingies' - the better <g>