Decided to pick up this book by Joe Duffy.
![Professional .NET Framework 2.0](http://images.amazon.com/images/P/0764571354.01._AA240_SCLZZZZZZZ_V58377401_.jpg)
I'm a follower of Joe's blog and love the information he shares on the inner workings of the CLR. I think the thing that "sealed the deal" was the table of IL instructions as an appendix in the back of the book.
&nbps;
Yes, I'm a sick individual. ;-)