Now, I don't own either one. However, Peter (pmbuko) had Monitor 9s and upgraded to Axiom M22s. Yes, upgraded to the bookshelves. The Monitor 9s were OK, but the M22s blow them out of the water in everything except bass levels. The M22s are a huge step above the Monitor 9s. And they cost half as much. Therefore, the M60s ought to be perfect for you.

I am the Doctor, and THIS... is my SPOON!