Swing application architecture

In my previous post I talked about a presentation I'm preparing, related to this and a course i'm teaching in advanced desktop Java development I'm thinking about 'the best practice' architecture for a Java Swing 'rich client' type of application. More specifically I'm looking for an all round solution to separate business and GUI layers, pass around events, prevent EDT blocking, (asynchronous) tasks.
After having read Desktop Java Live by Scott Delap (great book by the way) I'm not entirely convinced by his RSS Reader example., I do things differently, not necessarily better. After a talk with Karsten Lentzsch (JGoodies.com) I'm still somewhat in the dark. It looks like there is no correct answer, just some guideline into the right direction. Use PresentationModel's and an application-level model to interconnect larger graphs of PM's together. Maybe the EventBus could come in handy here, but I still haven't tried it.