I have the M80's and VP150 and find that it's either a case of too much or not enough. Speaking that if I turn up the VP a notch its too much, but it's just not quite able to keep up with those M80's at equal value.

I think you will be fine with the M60's, but with my setup the VP180 would not work. I might get another VP150 for the bottom of the TV tho.