I've been giving this some thought, especially since I'd like to really feature plugins here more. I'm just kind of dreading putting together all the plugin pages because I have so many plugins now. ;)
Another concern is how to address the navigation. Currently we have this:
In the current design, there's not a lot of room for an extra menu item. So, my first idea would be to move the "About" item under "Home" to save a bit of room. I really feel like that's the only menu item that doesn't have to be on the top level.
Plus, I've been thinking about a slight redesign of some of the elements on the site, particularly the sliding panel at the top. The only reason I added it was because I needed to save some room. Personally, I'd like to remove it, add the "Subscribe" and "Showcase" links to the top right corner, and add a "Log in" show/hide form next to them. Then, maybe move the search form to the breadcrumbs menu.
While adding a place for plugins is something I want and am sure others will appreciate, there's larger design issues to consider. There's just so much content on this site, it can be tough organizing it all. So, the first step needs to be thinking about the entire organizational structure of the site.