Many thanks to all of you for your help! (Am I the only audiophile plunged into existential crises by dilemmas of this type?) I took your advice and ordered the VP100 and QS8s to complete my speaker system. As for the uniplayer, I'll get the upcoming Pioneer 563A if it gets half-decent reviews, and the Pioneer 45A if the 563A gets panned.

By the way, if it had not been for the new maple/tan finishing, I doubt very seriously that I could have obtained spousal approval for on-wall surrounds. Clever move, Axiom!

Thanks again!