What is your budget? I have owned four different pairs of ML's....... From SL-3's to Prodigy's, and many different amps (tube and SS). I always preferred tubes. I had good success with ARC VT100 II (Used $2000) and Sonic Frontiers Power 2 (both 100 wpc). I also used a BAT VK75 SE, and Nagra VPA's (50 wpc). Either the ARC or SF amp should work very well in a moderately sized room. You might also look into a pair of the Rouge 150's, or VTL 150 for a little less money. All of these amps deliver a lot of current (as opposed to the voltage of the SS amps).
Chris