Another real good book is that is more focused on field use - rather than setting up compass courses - is
The Essential Wilderness Navigator by David Seidman and Paul Cleveland.
Very well written and easy to understand.
I highly recommend the Suunto M-3 as a very nice, high quality, and low cost compass. You'll pay more for the global version, so think about whether you'll need that feature first.
Ken
By the way Willie, I really like McHenry!! I live just east a bit - west of Mundelein.