Froot, welcome. Axiom speakers offer great sound at a fair price. Specifically referring to Paradigm, others have also commented that the Axioms are at least as good as the Paradigm Reference series, but at a significantly lower price, due at least in part to the fact that Axiom sells direct to you and cuts out the middleman.
As to a ceiling mount for QS8s, Randy Porter(sirquack)has made a very neat one which he's shown pictures of here. You might check his posts or if Randy recovers from celebrating his birthday today he may see this and comment.
