Don't have a recommendation on what to get, but stay away from Logitech's G930. When they do work, they're great, but I've had three replacement units from Logitech in two years and got a refund for them in the end. Issues included frequent disconnects and the right headset not working eventually on all the units I got (not isolated incidents either, just do a Google search). The wired equivalent (G35) has a slightly better rating on Amazon, so it might be worth checking them out. Some people have mentioned that they experienced build quality issues with both models, but that wasn't a problem for me.

I just saw that there's a new line of gaming headsets coming from Logitech (G933 (wireless), G633 wired (wired)). Might be worth waiting to see if they addressed the issues people had with the older ones.

To be honest, I don't think there's really any "good" USB headphones. All of the headphones which sound really good all end up having 3.5" plugs on them.

You really didn't mention if you're looking for in-ear, on-ear or over-ear cams. Or, what they're going to be used for (e.g. gaming, music, etc). Sometimes knowing the application can help out a lot. For example, they need a mic?

Personally I have a pair of KRK KNS8400's that I use for general music listening, as well as studio recording. They're solid over-ear cams that have good build quality, comfortable for all day use, and have a relatively flat frequency response. Pair that with a little USB adapter and it would meet your needs nicely.

Anyway, post back if you have more input and I'll try to help out.

My friend has a pair of razor taimat 2.2 she swears by. You can get them for around 100 bucks and from what I've heard they sound fairly nice. Though if your just getting them for a work at home call enter position or something look into Logitech , though heed MePLUR's warning the G930. I currently have a set and they barely work.

PlayStation Gold Wireless Headsets run at about 100 dollars. They've worked excellent for me. I'm not exactly an audiophile, but if you have any questions, feel free to ask.

PlayStation 3 wireless stereo headset! I actually got these for PS3, but hardly used it, but since it works on PC, I used it extensively alternating with my desktop speakers. Very comfy, good sound (kinda bassy) for the price and sturdy too. I've had these for like 2.5 years I think, I'm still using it, had no trouble with it whatsoever! I think it sounds better than my Beats Solo 2, which I got it as a gift.

As some state in the comments, stay away from the G930, horrible they didn't even last a year for me. It didn't feel premium either, unlike the Sony. 7.1 surround felt gimmicky more than worthy feature for me!