I passed the ITIL v3 Foundation exam today with 77%.
Not that good of a score but with just 2 days of preparation I did not expected more .. 

I had a unique situation where my company was sending me to a 5-days RC&V course and it included the exam in the last day but the pre-requisite was to pass the foundation exam. So with just 2 days to go, I booked an exam, searched the internet for forums and books and was all set.
I eventually noticed that i have downloaded too much of material e.g. CBT nuggets, art of service videos, service foundation book, tim's certification kit pdf, taruu's pdf and a lot more...and I did not had that much time to go through it.
So, I just did a quick but thorough read of the following -
- Taruu's online pdf guide
- Tim' certification kit pdf
- Gave some sample tests covering like 200 questions in total
And went for the exam and passed 

The questions I missed were probably not covered in these 2 guides e.g configuration model, roles and functions in details etc
Background: I have 6-7 years background in I.T (specialization in config mgmt.) with a degree in comp sc. and couple of java certifications
Hope it helps and encourages other candidates in similar situations...it's doable, just be strong and prepared.
I wish Ihad little more time to get into more details as I loved reading each topic of the exam...