thanks, airon. i looked up the rocketfish and based on that i think i've decided exactly how i'm going to set things up. i'd rather have my amp powering all speakers and running the speaker cable shouldn't be a big deal at all.
it will involve:

and
to replace the current plate where i brought the tv cable line up through, and use that to send the speaker cables down into the basement.
and then just bring up the speaker cables on the rear wall through this: