Hi Derek,

Since your interest is in structirng your writing more than collecting/organising information, I suggest that you take a look at the following two applications (I hope your CRIMP will not object to the first one being free :-)

Chapter by Chapter: http://pagesperso-orange.fr/sebastien.berthet/cbc/index.html

Page Four: http://www.softwareforwriting.com discussed here http://www.outlinersoftware.com/topics/viewt/1064

In addition, the following threads extensively discussing writer software may be of interest; you'll find many more programs mentioned there:

Scrivener-like outliner for Windows? http://www.outlinersoftware.com/topics/viewt/1074

Fiction vs. Nonfiction writing/software http://www.outlinersoftware.com/topics/viewt/842

Research Writing Software http://www.outlinersoftware.com/topics/viewt/928

Cheers and welcome to the wonderful and never-ending world of outlining
Alexander