CMS Suggestions?

I finally have the ability to take over the web development of Sugarloafers.com our snowmobile club’s website. It is currently maintained with Frontpage.

I’m just not sure what I should do for a CMS. I really want to have a beautiful, modern, but unique looking website. I would love to have a forum intergated as well, then I could move the bullitin board, buy sell trade, and trip reports pages into there. I don’t want a system that is unwieldy either, simple is how I like things.

Please, take a lot around the site, as I want to replicate everything that is there in one form or another and need a CMS that can do that.

A web based solution would be best (or an easy to use cross platform local editor can be considered).

Looking forward to hearing your suggestions!