I already have an active USB 2.0 extender for the Kinect, as I think that's the longest USB run I need to do. I'm going to try to run the USB 3.0 cables pretty much directly from the equipment closet to the seating area using a floor cord cover. I'll have the cables to the Buttkickers, right surround, and rear surrounds following the baseboard around to the other side of the seating area. Another floor cord cover will get the Buttkicker cables to the Buttkickers. Raceway will get the speaker cable to the right surround. Even more floor cord cover will get the speaker cables to the rear surrounds, which I've decided will be on the FMS-QS stands I already have. I was considering ceiling-mounting them, but I decided I want to be able to move them around with more freedom, for experimentation purposes.

The floor cord covers will most be covered by area rugs, so hopefully it will look okay.

I've ordered one section of this baseboard:

CableMate Baseboard Channel w/2 End Caps, White C800

If it looks like it will work, I'll go ahead and order the rest of what I need.