I've been using the MFJ-4125 for almost 2-years for my portable setup (powers my IC-706MKIIG). It is the smallest and lightest switcher out there (5-1/2x5-1/2x2-1/2" and 2.9 pounds)), and it is very quiet RF-wise. MFJ does a very good filtering job on both the DC outputs and the AC input. It has a high current DC output on the front, and a low current DC output on the back. I replaced the low current rear connector with two Powerpole pairs so as to have high current capability on the back of the supply (current was only limited by the original connectors). Info is on my website at www.ad5x.com
, where you can also see photos of the internal filtering.
Anyway, as you can tell, I really like that power supply.
Phil - AD5X