Well I went to OcUK today and took them back, I was advised to not bother getting another pair so I just picked up my PC166's and WOW. 
Speakers are of fantastic quality and the mic picks up everything very well, games are much better than my sony's, cmss-3d works really well with these headphones, dare i say it the virtual positional sound is not far off the razers ability to give positional sound. In game sounds are much clearer than the razer gunfire from all around is defined to a high quality.
Non fps games are also a joy to play once more, in nfs:c the engine sounds and music is crisp and clear and in sup com the sounds and explosions are defined but not too bassy.
As with the razer's these required some tuning in the xfi control panel to get everything sounding rounded and full, not that they were great un-tuned.
Music and films are again a joy to listen to, detail is caught and reproduced very well.
The included soundcard is interesting, it supports stereo 16bit 48k dvd quality audio in/out and seems to be tuned to the headphones, works very well for games/entertainment, in entertainment it is better than onboard audio (24 bit realtek + sigmatel tested) but slightly lacking in games compared to the xfi falling behind in games with full eax support and eax4/3.
I am disappointed in the build quality of the hp1's, with decent drivers and better designed mic they would be worth every last penny, the looks just add to the cool factor. However the pc166's while not surround headphones are proof that a pair of high quality speakers are much better than headphones that attempt to be 5.1 speakers.

Speakers are of fantastic quality and the mic picks up everything very well, games are much better than my sony's, cmss-3d works really well with these headphones, dare i say it the virtual positional sound is not far off the razers ability to give positional sound. In game sounds are much clearer than the razer gunfire from all around is defined to a high quality.
Non fps games are also a joy to play once more, in nfs:c the engine sounds and music is crisp and clear and in sup com the sounds and explosions are defined but not too bassy.
As with the razer's these required some tuning in the xfi control panel to get everything sounding rounded and full, not that they were great un-tuned.
Music and films are again a joy to listen to, detail is caught and reproduced very well.
The included soundcard is interesting, it supports stereo 16bit 48k dvd quality audio in/out and seems to be tuned to the headphones, works very well for games/entertainment, in entertainment it is better than onboard audio (24 bit realtek + sigmatel tested) but slightly lacking in games compared to the xfi falling behind in games with full eax support and eax4/3.
I am disappointed in the build quality of the hp1's, with decent drivers and better designed mic they would be worth every last penny, the looks just add to the cool factor. However the pc166's while not surround headphones are proof that a pair of high quality speakers are much better than headphones that attempt to be 5.1 speakers.