I'm very pleased with the performance of a Swagman Labs LPS. I have the upgraded model.
http://www.swagmanlab.com/page289?product_category=271&brd=1
http://www.swagmanlab.com/page289?product_category=271&brd=1
They don't just make noisy DC power, but they put noise on the supply line.Agree. This is a problem with the SMPS in a wall-wart.

