klipsch 4.1 is the best.

If cost is not an object, there is most certainly a better solution.

I use Mackie HR824 active studio monitors with my PC, each one is internally bi-amped. They have essentially falt frequency response from 40Hz-20kHz. This is of course a rather expensive solution, but I truly have not heard better sound out of a PC.

Others to consider are the Monsoon MM2000 and Boston Acoustics BA4800.

The Sirocco Crossfires are clearly better but this comes at a cost.

I think you need to have your ears listen to the MonSoon MM1000, if you want to brag about the Klipsch. I found the Klipsch to very harsh sounding and a very dry bass.
Mark

Aego2, stereophile and TAS got this one right on the money.