I don't know anything about that book, but I was a Cakewalk newbie a year and a half ago (got Sonar 2 six months ago). I would say, dig in. I know it can be intimidating, but see if you can get some tracks recorded just for the heck of it.
I have an Aardvark Q10 interface unit, a locker full of mics, and am building the DAW now. Part of the long process is rack mounting the DAW, Q10, (future 2nd Q10), and a mic patch bay so I don't have to constantly plug the Q10 jacks.
The remaining 5% of my recording needs will be multi-track recording of a solo artist playing different instruments. The recording environment will not be studio quality.