I'm not sure if you're all aware, but the Authors of the Shellcoders Handbook are releasing a revised edition with some (apparently %40) new material in April, 2007.
"# New material addresses the many new exploitation techniques that have been discovered since the first edition, including attacking "unbreakable" software packages such as McAfee’s Entercept, Mac OS X, XP, Office 2003, and Vista
# Also features the first-ever published information on exploiting Cisco’s IOS, with content that has never before been explored
"
I thought it sounded interesting, anyways.
So yea, I was just thinking I should probably append some sort of a link.
http://www.amazon.com/Shellcoders-Handbook-Discovering-Exploiting-Security/dp/047008023X/sr=8-2/ref=pd_bbs_2/102-1326124-1044129?ie=UTF8&s=books
