Thanks!
Yes, I'm very happy with the sound/this system.
I've started a search for a used pair of subs to add to the 3A Sigs. Although I'm very pleased with their sound now, the subs do take them to another level.
The Slate is a nice wire, and I have not experimented with speaker cable with this system. I used this cable with my old Paradigm set up and just had me dealer change the ends.
I'm pretty sure some room treatments and subs are where I need to go with this set-up, although a straight 2 channel Power Amp is also a thought. If I just had the $$!