if only Sound/price ratio (for solid state and strictly my personal opinion)
For stereo only:
money willing
RA-1060 or RA-02 or RA-01
http://www.rotel.com/products/integrated-amplifiers.htm
Rotel makes excellent pre-amp sections for the price.
Your 951 is an excellent CD player 20 bit Burr Brown PCM-69 DACs HDCD will compliment any of the above.
The M22 is very efficient and 60w is lots of power to drive.

or a used C370/C350/C320BEE Stereo Integrated Amplifier
http://nadelectronics.com/integrated_amp/