Compatible external USB video capture card

[nLinked]

Does anyone know an Ubuntu 10.10 compatible video capture card that has composite connections for video and audio (yellow, red and white)? It must be external and do its own processing so it doesn't use the computer's own CPU.

I intend to capture a live stream and have the Ubuntu PC serve it to other computers. I may use VLC or MythTV.

I have looked on various related sites but finding a compatible USB one which does its own decoding is hard to find.

[movieplayer]

i'm looking too

[nLinked]

i'm looking too

I eventually bought the Hauppauge 1900:

http://www.hauppauge.co.uk/site/products/data_hvr1900.html

Never got round to using it though due to change of plans. But I think it was compatible.