One site - Many Forums???

[iBaker]

Hi
Just wondering how you would suggest I achieve this.

Say for example you have one domain that covers the entire range of boating.

Sailors are only interested in their type of sailing or a couple of boat categories.

sailors are put off if all types of sailing and boats are in the one forum as there is a lot of areas that they are not interested in

So, you want a separate group of forums for each type (its a long story why ) like:
- Dingys (General Discussion, for sale, building, etc)
- Speed Boats (General Discussion, for sale, building, etc)
- Cabin Cruisers (General Discussion, for sale, building, etc)
- Ocean Liners (General Discussion, for sale, building, etc)
- etc etc etc (General Discussion, for sale, building, etc)

You want your site to have a home page that contains all general boating news items and then tabs across the page for each separate group of forums.

You also want one single login so a user can access any number of the tabs (boat types) that interest them.

So how would you suggest this be done...is it even possible?

(note also posted on vBulletin.com)