i personally have the paradigm cc-370 with my m60's and they sound great together. i found the vp-150 to have bad off axis problems and also the dreaded unnatural S's.
If you want natural sounding voices you may wish to audition the cc-370.
Dont forget to check out the SVS line of subs, they are an incredible sub and also have 45 days in home trial.
Just something to think about, most high end centers will have a broader range, this helps lower male voices, etc. to actually come from the front, its not really giving you the true effect if your sub is producing Barry Whites voice (or any other low male voice). It will not be coming from the front; as much as everyone wants their sub to be non directional most can still be located by ear and if you are rolling your center off at 100 then you are losing the true intended direction of voices below that range. This can also be an issue with your surrounds. You will benefit if you can produce as much range with them also, it will really add to the realism in a home theater setup.
