I have 3 brand new sets of AAMC IV (great one), willing to sell for $25 (to cover shipping costs) vs. AAMC's price of $40. You get both the test booklet and the solution booklet. I liked exam IV, it gave me the practice I needed but also the confidence. You should get AAMC V and VI too, but...those ones aren't so confidence-building .
As for other stuff, I'm waiting to see what my scores are like first! If I don't have to retake, then I'll sell some stuff or even pull a Fudd and give some away for free