denon, your follow up hits some good points. I recently chose the PM 2.1's, as I'm not into gaming anymore (never was that involved to begin with). And, I don't have the room in my office for a 4.1 or 4.2 setup. So, I replaced my Boston Acoustics MicroMedia (now called BA790) setup w/ the Klipsch PM 2.1's.
Was there anything wrong w/ my BA setup? No, but once in a while you have to succumb to a whim, and just buy it. I got a good bonus check for fourth quarter, and decided to buy the PM 2.1's, and return them if they didn't pan out. Needless to say, returning them quickly became a non-option. I did have some problems w/ a right channel drop out, and Amy of Klipsch was wonderful in working w/ me to correct the problem.
While the BA MM's were better speakers than most will ever experience on a computer (a shame more people can't or won't hear what good audio sounds like on a computer), the PM 2.1's are a step up from the BA's. All I can say is wow! They'll play soft, w/o loss of fidelity, and literally knock you out of your seat, should you choose. I got ahold of a small wav file, the thx theme that you hear at the beginning of movies, and my whole office moves at its peak.
Now the Klipsch speakers have made me want to hear the VideoLogic Sirocco's, and am I glad they're difficult to buy in the U.S. (as well as expensive)!