I use that same HPA2 headset also K, and I love it. The sound is great and the mic is great. It comes with a set of splitter cables too, so you can hook up your headset and run your speakers at the same time. Very comfortable once the initial stiffness wears off. You can wear them for a long time with no problems.
I screwed a metal towel hook to the side of my desk, and hang them there when they're not being used. That way the girlfriend's 8 year old daughter doesn't accidentally do something to them while she's on the puter.
I can't recommend the HPA2 enough man.