My goal was to achieve 90% in order to get invited to the Advisory Board. Ended up passing with 91%. It was agonizing seeing the checkpoint fluctuate between 88-93%.
I took the class via the Work/Study Program (awesome, look it up) in Chicago a few months ago with Jonathan Ham. That gave me access to the MP3s as well as OnDemand for 4 months. My process was indexing the books first and then watching most of the course again via OnDemand. I skipped some lectures where I was positive I had excellent grasp of the material.
For materials, I took all the books with me to the testing center. I created the following documents:
- one page summing up the Incident Handling phases along with their goals
- 4 pages summing up attacks and their defenses
- SANS **** sheets: Netcat, Windows Command Line **** Sheet, Linux Intrusion Discovery,  Linux Intrusion Discovery,
- index consisting of term, book #, page #, description. This came in very handy. I was able to answer most questions just by checking my "description field". I used Azmatt's 
index as an inspiration but I went with one master index instead of separate one for tools. Total pages for my index: 13. In another thread I mentioned I felt my index was short but it definitely served its purpose. I only remember one item that I looked up it wasn't on my index. Remember that indexes are a personal thing so no two are alike. All the time you spend here will definitely pay off.
I definitely enjoyed both the class and the test. It really opened my eyes to how much crap is out there and we have to defend from.
Sheets

Index