Designing a Community/Software/Game Development Management Syste

Hello,

Suppose you had to develop a community/game/software/art management system.

You want to 1) build a community 2) recruit developers 3) sell the game.

Live links to sites woudl be great!!!!

You have your own server.

What would you use for

1) forums
2) news
3) version control
4) galleries
5) workflow

I think that I'd isntall an
Open Source CMS with forums/news/version control mods.

I'd probably use postnuke.

What Open Source CMS would you use?

Nuke, Xoops, Mambo, Tikiwki?

Or would you use something entirely different?

Thanks for your time.

Ranger :)