Passed the SCJP 5.0 exam! I took the exam on Saturday 30th July but did not get the scores after the exam due to some technical problems. They gave me a phone number to find about the scores but I had to wait till Monday since it was a weekend. I called them on Monday and after staying on hold for about 30 mins, I was told that I passed the exam... It was a relief.. Still did not get the scores though.. They said they will send me the score report in mail..
Regarding exam preparation, I found the SCJP Tiger Study Guide very very helpful.. Also the Sun's tutorial on Generics from the Javabeat.net notes page is a must read.
Books for Java 1.5 Certification:
Complete Java 2 Certification: Study Guide (Amazon Link)
Sun Certified Programmer & Developer for Java 2 Study Guide (Exam 310-055)
(Certification Press) (Amazon Link) --- Not sure if this is for Java 1.5
General Books for Java 1.5
Java 5.0 Tiger: A Developer's notebook (Amazon Link)