I don't think they make the Shivas in 10"s, but I could be wrong. A 12" shiva is probably smaller overall than a 10" brahma in all but diameter.

In general, I'd stick away from the audiobahn. When I was looking they seemed to be SPL focused.

(and now, you've made me look at the specials page at thezeb and reminded me how much I need a set of components. $150 for a set of CDT components seems like a good deal. Must resist the temptations of credit card debt.)

Matthew