Because we're talking about Foundstone, anyone who's not familiar with their books might want to pick up a copy of Hacking Exposed and Hacking Linux Exposed. Also, Incident Response is a great book with lots of good practices and techniques.
Thanks for the suggested readings. It was also suggested to me from someone else to look into the books Hack Attacks Revealed and Hack Attacks Denied. I don't think those are Foundstone books though. Anyone hear of them before?

Anyone been to the Foundstone classes? Did they provide good info in actually securing servers?

My apologies as I started going off the thread path me'ah.