hi,
briefly, i think the fully CSS/HTML customizable web hub service Posterous.com should be examined as an option. It can do pages and portray a sense of permanency/static info while supporting "blogging" in a more social media-enabled way with various auto-posting features. With comments disabled or not, the use of the "blogging" platform could fulfill the same role as the wiki but in a more dynamic way with posting possible via e-mail, a very useful feature whenever a few hands are involved.
there are many general posterous blogs out there, but to see how one person re-purposed the Posterous infrastructure to create a site, check out food guru Mark Bittman's site.
a lightweight solution. just one idea.
best,
morgen