OCPJP 7 (Oracle Certified Professional Java Programmer)

I've found some interesting books for OCPJP 7 certification:

• Certified Programmer for Java 6 Exam 310-065
• Oracle tutorial
• Oracle Certified Professional Java SE 7 Programmer Exams 1Z0-804 and 1Z0-805
• Tutorials Java

And a few mock exams to get more practice:

• free-scjp-mock-exams (Nikos Pougounias)
• habrahabr - part_1
• habrahabr - part_2
• Web-exam (registration required)
• List ScjpMockTests
• Oracle has 10 sample questions
• TechFAQ360 has a free mock test (registration required)
• Enthuware (registration required)

Video lessons

• Lessons from Yuriy Tkach

I think it will be enough to pass the exam and get the certificate :)