Not sure these pages will make the break, but sure as hell they will help, especially when you add more of them frequently.
On
http://www.jays-xxx-links.com/links/hardcore.html I found 354 URLs in 366 links, therefrom 287 outgoing links. That's way too much to be effective. Splitting category pages increases overall PR too (proper internal linking assumed), and you gain more points of entry for SE traffic.
In general, the advantages of a structured internal linkage are underestimated. The importance of content (body text!) spread across the pages of a well structured site is underestimated. Homepage PR is overestimated.