5.1 surround sound headphones.

The main surround sound headphones I see are the Zalman theatre 6. Also I have seen the Kinyo KY-100. I'm leaning towards the kinyo's because they have volume control on the base, and it does not look like the zalman's have that. I have seen a couple of others that are around $80-$100 which is too expensive, I'm looking more in the $50 range. Does anyone have any opinions as to which is better, or are they other choices out there?

Edit: Are they worth it at this point in time, or does the technology need to be developed more? I plan on using them for computer gaming, and watching some movies. I heard some good things about he zalmans, but also some bad things about their sound quality. I have no speakers, and the headphones I have now are pretty old, so it shouldnt be hard to be better quality then them.
<P ID="edit"><FONT SIZE=-1><EM>Edited by muc0n on 08/12/04 05:32 PM.</EM></FONT></P>

Double post