well , what do you know, you could get these in 2004, shame your local computer shop still doesnt have anything like them ?, they come in a DVB-T form to (no AVC/H.264 though)
http://www.trimedia.co.uk/product.asp?id=202
"
H.264 MP@L3 D1 resolution up to 2Mb/s
MPEG-2 MP@L3 D1 resolution up to 10Mb/s
Supported by Trimedia Middleware and Conditional Access
Flexible audio and video output via cable options
USB 2.0"
the The Net100 at the bottom of the page is rather nice
as it means you can bypass the plugging the DVB-T into the PC and using that as the server.
http://www.trimedia.co.uk/product.asp?id=204