Is the fifth year basically the final year?
My recommendations would be:
Oxford handbooks and baby K and C for knowledge.
Textbooks for clinicals - pastest on surgery and medicine (they also do good EMQ books).
Go on some courses:
Medicine :
Elite Medical Courses - Revision Lectures for Success in Exams
Surgery:
The MDU Revision Courses Surgery Revision Course
The MDU medical course is not worth it.
Also my BIG tip for final year is get in and see patients early. Towards finals the patients will be under attack from med students, so will refuse a lot of people. Therefore see them early, and learn.
Feel free to ask for any help you need.