I'm looking for new surround headphones to replace my Turtle Beach X-51 and Zalmans 5.1?s. I am interested in Turtle Beach Ear Force HPA2 (uses on board computer sound card), AK-R8 (USB with interal sound card), Razor Baracuda HP-1 (USB with...), Razor Megalodon 7.1 (USB with...), and Medusa NX 5.1 (uses on board computer sound card).
Has anyone tried any of these new models? Has anyone had problems with windows XP using USB headphones? Looking for 5.1 headphones without trying them is difficult, so any advise would be great.

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