These are my speakers:
http://cooltechzone.com/reviews/audio/251_1.php
They are a few years old. Right now, I have an old laptop, my new pc (500W PSU), an lcd monitor, and the speakers plugged into the old surge protector I described a few posts ago. I hope that helps some. I would prefer to shop at Radioshack because I have a good friend that works there that could get me a considerable discount.