Hey and Welcome!

Along with seconding the comment above about auditioning the various speakers you're considering (at least the mains), let me suggest that you shouldn't feel obliged to have your subwoofer be part of whatever system you decide on. Unlike mains and cc's, subs don't have to be voice- or timbre-matched.

In fact, unless you insist that the cabinetry coordinates with your mains/surrounds, you're probably better off considering a sub from a specialized brand like SVS, Hsu, Velodyne, etc. I think you'll find (and most here would agree) that they represent a better bang/buck value. Do a search for subwoofer and you'll find a ton of threads to that effect, I'm sure.

Congrats on the new house; enjoy the hunt.

Roger