I just stumbled across this new framework which looks really cool. It is called extjs. One of the samples that knocked my socks off was this desktop example:

http://extjs.com/deploy/dev/examples/desktop/desktop.html

You can see this and more at http://extjs.com/

I got curious and implemented it on my own site and it only took about 20 minutes to get it working. I don't have any examples setup, but I was pretty impressed with it, and how it works in ie6/ie7/mozilla!