Does anyone know of a U.K. supplier that sell these I don't really want to have to order from Ebay.

USB 3D Audio Sound Card Microphone Adapter For Dell IBM on eBay (end time 12-Aug-09 04:02:18 BST)

This is a more expensive version I'm really looking to pay < £5 as we need quite a few.

USB 2.0 Audio Adapter | USB Converters & Extenders | USB & FireWire | LINDY UK