I am working on this site at the moment:

http://www.mollyocards.com/site

Here's what I'm trying to accomplish with the list that is in the left sidebar called "Categories" …(currently the white subitems under the word categories are the top level "products")

I'd like each of those topics (cards, portfolio, t-shirts. announcements, etc.) to be the primary header in the left sidebar (with the big green circle behind it). Then, each of it's child categories to appear under it as the white link.

So basically, my Products would be listed:

CARDS (primary)

    Birthday
    Blank
    Holiday

STATIONARY

   Flat Cards
   Kids Cards
   Invitations

T-SHIRTS

   Kids
   Rompers
   Custom

Is there a way to do this other than using custom menu's so it's easy for the client later to edit?

I can work with that. Thanks!