For your CM9s your are in the right direction. Rotel really pairs up great with B&W but tend to be a bit pricey & not have as good a feature set as others. But the sound on them is great.
I have B&W 683s & LOVE what Yamaha does to them. So my recommendation would be any of the Yamaha Aventage line (at least 1000-3010)
However, Pioneer Elite, Marantz, Integra are very good as well. Onkyo's reputation lately has gone down so their high end Integras may not be as good an option.
For $1500 you'll get pretty much the same sound just with different features.