Yes, some models are from games namely Halo3/ODST/Twilight Princess and such, and there are some legal issues there, even though it's VERY easy to obtain these models now. However I figure it would be nice for Mac modding to have some kind of Model pack incase it's achieved. Lemme know whatcha think. Also, if the Programmers think it's not possible at all with Mac, then say so early so we can just forget this lil post altogether.
And yes you will need experience with 3dsMax,Maya, Blender or Wings to even consider doing anything with these items. So...yeah whatcha think?

I'm waiting for an answer guys.