+1 for the Rheobus Extreme. Love mine. I run 2x Ultra High Speed Panaflos off of channel #1 without any problems. While it is rated for the load, I didn't want to push it, so the third is on the second channel (all three on my radiator, just got an MCR320 for father's day), but it should handle all three (they're 7.8W/ea).

