I'v just passed the scjp 5.0 exam. What could I say is if you are very comfortable with Bert Bates new book for scjp 5.0 you can go for scjp 5.0. otherwise I suggest you just stick to scjp 1.4, the reasons are these two kind of
test are very different. what are the differents?please ask Bert Bates, not me.