Need help/info regarding project mgmt in Drupal

A while back, I looked at creating a site with Drupal (was either late 4.x or 5beta), and kept hitting roadblocks where it came to project management and the various modules available then.

Can someone tell me if it's now relatively easy to have the following:
- Per project management - Site admins approve a project and then designate the project 'owner' and let THEM administer their project, from the standpoint of allowing users access, or making it public
- user roles within projects - again, should be handled by the project owner, NOT site admin.
- svn integration for projects, with access control based on project and rights within a project
- granular access to different project pieces - an image gallery may be public, but the discussion pages may be 'project members only'
- I seem to recall the image gallery was 'global' effectively...really need this as part of the projects themselves, along with permissions for the gallery to be controlled by the project.

That about sums it up..think about sourceforge or CollabNet and you'll have a general idea of what I'm after.

Is this possible with either 5.X or 6.0 beta currently?