Started learning Java.
Installed Eclipse, with the java development tools, and already wrote and ran the “hello world” program! Wohoo!

Listing of some sites that are useful, as I find them along the way:
http://java.sun.com/docs/books/tutorial/java/index.html

A good introductory book to Java is “Thinking in Java”. Free copy here:
http://www.mindview.net/Books/TIJ/