Sections For Consoles and Specific Games In Sub Forums would be best Example,
Xbox 360
Halo
Halo 1
Discussion
Video
Other
Halo 2
Discussion
Video
Other
Halo 3
Discussion
Video
Other
And have a Who's Gaming section to see who's playing what and when.
Also have an option enter GamerTag for xbox GamerID for PS3 and ID Number For Wii under the avatar.