JSbach1685, The McIntosh will be warm and cushy probably not a great paring with your speakers. Too much warmth I think. Seriously, if you could find a ADCOM GFA 555 (any generation $300-$350 used) and the ADCOM GFP 565 preamp ($300 or so used) these two pieces sold for $1000 amp/$800 preamp. This would be special with those speakers and would save you some $$ too. The preamp has a good MM phono section too. Together with those speakers the sound will be tight, bass will be deep and controlled with a huge wide soundstage with great extended highs and beautiful midrange that will move you! Good Luck.
Also, while the GFA555 puts out 200w per channel 8ohms Its this extra headroom that will really make those speakers come to life...you wont overdrive them as long as your aware of your volume control, they will just sound a heck of a lot better :-)
Matt M