Hey Robert,
I have been a developer for the last one year and what we do in development is trying to get things done. We try various ways to get it done. probably my excellent C++ skills and a little bit of JAVA understanding are helping me to understand the Specs and go for the Big projects.
Frankly we dont care very much about the minute aspects of programming in JAVA in which people try to grill in the certification. For example, try to send a String argument by pass by reference. If you dont know the basic difference between the String and StringBuffer, you wont be able to solve the problem efficiently.
Hence what I think is, If you really want to crack the test, you need to understand it from the SUN's perspective. And what I mean here by cracking the test is, aiming at 100%. It will be a very good booster for your confidence when you want to go for the next level certifications.
Have Fun, Its just a challenging test.
Vijay