Hi there...
Like a few others here, I took the GAMSAT last year, and now am now looking to sell the stuff I bought last year, which I used to get a really good mark in the exam, four medschool interviews and two subsequent offers.
I was really successful in my test, and got an overall score of 74 - which is in the top 2% of candidates.
Follow the link to my ebay auction;
Huge Pack that got me Top Marks at GAMSAT on eBay, also, Medical Nursing, Educational Textbooks, Books, Comics Magazines (end time 29-Jun-08 20:32:52 BST)
Good luck if you're thinking of taking the exam!