.NET developer looking to get up to speed with Java

I've been developing in .NET (some C# and a lot of VB.NET) and I'm looking to get back in to Java.. I did quite a bit of Java back in school for the courses I took for my masters, but I've been away from it for about 5 years. Can anyone recommend a decent book or online resource that would help me get back up to speed in Java and get started with J2EE? I need something with a little more depth than System.out.println("Hello World");

Any suggestions are appreciated. Thanks.