how about a hidden category for each group? then the group mod can add forums. but then you get to an admin problem... right now there is not banning and other stuff for mods. in order to give mods the ability to add forums/etc. the admin would have to be updated - which isn't scheduled until 2.2
so for ease it would probably be better just to give each group a forum of their own.
i like the idea of the egroups type of thing
"A nerd is someone whose life is focused on computers and technology, but a geek is someone whose life is focused on computers and technology and LIKES it that way."