I don't have any experience with the Nuvo product line but I do have a couple thoughts.

While your desire for whole house audio quite common, are you sure you don't want to incorporate video distribution as well? Considering the time and labor involved in the installation of the system, it's only going to be an incremental increase in cost. Of course, the Nuvo is audio only so that may mean looking at other brands.

The other thought is that there is a trend underway to include internet connectivity in these products. A number of apps are beginning to appear for ipod/ipad and Android products to offer control of the system. Don't know if that might be of interest to you.