My oldest project in my porfolio is my motorcycle-site, which started out as sortof a weblog for myself, then staerted to get reactions/comments. I installed a forum and woosh! It became one of Holland's most popular biker-websites. I think I started "overdoing" it when I migrated forumsoftware a few times, and later installing Joomla with SMF as a component.

Anyway, to keep it short:
I have Bikepower.nl, Bikeforce.net and Autofreaks.nl, which i want to give the same look and feel. I want them all to be separate forums, and nothing more (that was when Bikepower was at it's best). So I need 1 design for 3 sites, just wit a different logo/header.
Now, cars and bikes. Which colors should I go for, should I try to make the template myself (which I heard is a b*tch in SMF), should I try migrating to a system like vBulletin for better teplating?
I just need some advice and new inspiration..