Need advice on which CMS would suit me best.

First, the website in question: http://www.richardmccord.com
Purpose of the site: To display my writing online to
include single-page poems and rants, to multiple page stories.

I’m still in the designing phase of my personal website and finally have the look and overall basic funtionality that I want. I have the Header with logo, catchphrase and an awesome main menu listing the Top-
Level Categories. Then the sidebar has a dynamic menu which lists
the sub-categories based on which main category is chosen.

For single-page entires (like poems and rants) the functionality is
simple: link to the post and done. However, the problem arises with
making navigation simple for things like 250-page stories. I came
here because it was suggested to me that Joomla might better fit my
needs than my current WordPress setup. (Which I’m also still learning)
I come from having used Frontpage for years back in the day. This is my first outing with a CMS. I basically bastardized a couple of
templates to achieve the layout I currently have and LOVE it, but I
have to consider how best to implement my navigation and display needs,
which might mean re-thinking the CMS I stick with.

So, any suggests would be greatly appreciated. Would Joomla be better for what I plan to do with my site than WordPress? Or can WordPress
easily accomplish what I’m after? And if so… how?
Thanks, in advance.