I'm looking for a good study guide for the Security+ 2008 / SY0-201 exam. I'm looking for something that will fill in the gaps in my knowledge while pre-paring me for the exam. I'm also not looking to just pass the exam and say I'm certified, I want to know more about security by the time I"m done.
So, what are your opinions on the current Security+ study guides out there? Are there ones you like more than others, which ones do you think are worth their salt?