Best 2.0 powered computer speakers?


What would you suggest?
128x128jwilsco
I have both Audioengine A2 and A5+ speakers and have been very impressed. The A5+ speakers were amazing the few times I actually hooked them to my CD player rather than using my iPhone as the source.
A lot of people on Amazon complained about the volume control with Audioengine speakers...any thoughts on that?
And can someone please tell me if Audience One is a desktop computer speaker? Some articles would make you think yes, but then they dont seem powered, so whats the deal?