Bray,

If you can hold off at all, I would for a little while. If the VP160 goes into production then this may be the best option of all suggested. It has the same number of drivers as you m60's, but has the tweeter over the midrange for better off axis sound quality.

http://www.axiomaudio.com/boards/ubbthreads.php?ubb=showflat&Number=355530&nt=3&page=1

This speaker has me excited. I really hope it goes into production. I was debating replacing my vp150 with the vp180 when it first came out. I may go with the vp160 if it comes into production instead.