This week's book giveaway is in the OCPJP forum. We're giving away four copies of OCA/OCP Java SE 7 Programmer I & II Study Guide and have Kathy Sierra & Bert Bates on-line! See this thread for details.
I just started reading this book by Kathy and Bert, and have to say that it's grabbed my attention so far! That's something that not many of these Cert books has been able to do ) Mike Meyer's Certification Passport for Java 2 is also very good, though apparently for the 1.2 exam, not 1.4. Good luck!