Budget is 30-40 quid, would prefer USB for ease of use and with a mic
I'm not a huge audiophile but would like decent sound for both games and music
Well that's not quite true. USB headsets have a built in sound chip and they have varying capabilities. Some of them allow you to change settings.
Unless it takes a standard input, you won't be able to use a USB headset with a soundcard if you ever decide to get one.
Uriel is right, ive got a usb headset from pcworld and i can change the bass and that
Read what I said.
Regular sound card!.
I was under the impression that if you're using Vista, all sound is controlled by Vista. If you plug a set of Logitech QuickChat USBs into a PC with no sound device installed, you won't hear any sound. The same with a set of USB speakers. Vistas new drivers were a source of much annoyance when they first came out but they do help with somethings (you can remap any 3.5mm socket on a soundcard to any device for example, as long as the driver allows it).
If the only soundcard in the computer is the onboard Realtek, the USB headset is controlled from that. If you have X-Fi, then (under Vista) that will drive a USB headset.
Nope. It it's USB (speakers or headset) it generally has its own onboard sound device (usually a fairly basic C-Media chip). An the internal or onboard sound device can't control USB sound devices.
Logitech Quickchat Pro USB.