Blue Circle Comparisons

I've been enchanted by the Blue Circle BC3.1 Galatea and the BC 28 hybrid amp. Looking to squelch the upgrade bug I'm exploring options for maturation in the Blue Circle product line. For single ended, it's the BC3000. Go there and stop? Then there's the balanced option which leads all the way to the AG3000. For amps, there is the AG8000 hybrid (not really an alternative right now) and the SS amps (or bi-amp with a BC28). Hmmm...

I understand the BC hybrid and SS amps sound different and the single-ended and the balanced equipment sound different. Can anyone explain how all of these differ? I might like a little more oomph than the BC3.1/BC28 combo provides. But I certainly want to stay in the BC line. I really like their sound. While you're at it you can throw in your vote for your favorite BC combo. FWIW, my CD player is balanced as well. Thanks!