One more thought on running wire, try running some central vaccum tubing to pull the wires through first. If you ever need to repull or add wire it just slides on through. I wish I had thought of this when I did my basment but have done it on a friends house since. Works great. The tubing is large enough to handle HDMI ends as well.

Jason
M80 v2
VP160 v3
QS8 v2
PB13 Ultra
Denon 3808
Samsung 85" Q70