The Workspace Manager, called the Finder on the Mac, should look familiar to anyone who has used NeXTSTEP or Mac OS X in columns view.
You can access the Terminal.app from the Apple Menu.
Previously, I moved a QuickTime LEGO stop-motion movie that I created on a Mac over to the Rhapsody PowerBook. Here is a demonstration of me playing that movie full-screen in QuickTime Rhapsody DR2. Note that on the PowerBook 3400c I could not get QuickTime audio to work.