The question dealing with Visual Studio optimizations saved me so much time firing it up and using it I have a hard time going back to Eclipse when I have to do J2EE develop
I think the best way to learn about eclipse shortcuts is to use MouseFeed. MouseFeed is a plugin which shows the corresponding shortcut keys whenever the user uses the mouse to perform some actions. Common tasks and the shortcuts for them can be acquired within a few days. Mousefeed can be found at http://www.mousefeed.com/. Hope this helps.