The Definitive Guide to Systems Management Server Hardware Inventory Customization 
It's an eBook!
The guide is targeted at SMS administrators who want to modify the information collected by the default SMS hardware inventory process. As the name implies, the book guides you through modifying SMS hardware inventory from start to finish with very little prior knowledge of the hardware inventory process required.
The book explains the basics of WMI, as it relates to hardware inventory, as well as the hardware inventory process itself. Each of the various methods for modifying hardware inventory is described in great detail with many examples.
Customizing hardware inventory is explained in an easy to read format which greatly simplifies learning and also provides useful examples. The end result is an informative guide to modifying hardware inventory that is fun to read.
Read more about this book on the SMS Expert web site
Review
Own this book? Insert your own review by editing this Wiki page."For me, understanding the sms_def.mof was for some reason a big mental block for a long time. Oh, I had definitely extended the mof before I got this e-book; and even sort-of understood why and how. But this book linked all of the disparate little bits of knowledge into a cohesive "a-hah" moment for me." -
Sherry Kissinger