Like the ideas and agree about doing away with the slider. There's too much info up there and unless you poke around you don't know where to look. I know it will be extra work, but plugins deserve their own forum as well as description page. That sounds daunting to me and it's not my site.
I actually find "about" more important than "home". Anyone visiting a site like this, knows they can click on the logo. You could use single links for about, contact and login. I also don't think "club" needs to be highlighted as you essentially get directed to this page if you try to do much. Club is really needed when people realize the functionality/info they want is not available without joining.
I was thinking of a design where the breadcrumbs area also contains search. Frankly, unless you limit the length of titles shown, this could be a problem. Also, it'd be nice to search the different content sections (blog, forums) separately which might require a more robust search. I don't think the font of the breadcrumbs needs to be as large though, so maybe there's a compromise there.
Hope this helps when you get around to it.