Seriously is too much for users to ask for a new category before going ahead and creating it themselves. I've already made an entry in the forum for possible new ones. You can see this at the top of the "Community Messages" on the "Recent Activity" list. Please go there first.
Here's the link: Forum:New categories
-- Anythingspossibleforapossible 02:23, March 11, 2012 (UTC)