First off, thank you for all the sound advice. (no pun intended)
I wen't-ahead and ordered the SVS PB12-NSD, it looks like a solid choice that nearly everything in that price range and more is compared against. I might attempt to add a second SVS PB12-NSD once I get other components of the build in place, depends on if I survive the wrath of my wife.
This leads me to William's question
I am building around my old Boston VR950 towers, I have four of them. I also have a matching VR910 center that I hope to replace with a used VR12 down the road. I hope my digressing is okay.. Boston stoped making the VR series speakers so for ATMOS I'm not really sure what to use in the ceiling, newbie here, are the ATMOS ceiling speaker power rating the same as front and surrounds? I will also be on the market for a receiver soon as mine is old 7.1.
Here's a few shots of the build so far. I will pull cable for four ATMOS speakers in the ceiling before the drywall goes in. I'm totally open to any other recommendations that come to mind.