Well, there are some things you have to take care of before a third person cam is really good. But indeed, there were several of those cams posted on the forum, I guess one should find one with the necessary features.
Nope, but the actuall culling is more random than rand(). I mentioned somewhere that i'd been having problem with it. I decided to go with EAC_BOX since it culled more nodes than EAC_FRUSTUM_BOX, and it also never culled objects that where actually visible. I'm using 1.3, no svn version.
If you don't have anything nice to say, don't say anything at all.