Video card with tv out support

I have knoppix installed to a hd and running great on one computer, but I am thinking about taking a second one to play roms on my tv with. I have been pricint out some video cards with tv out on them and just wanted to know if anyone has any of them working with knoppix and if anyone has any recomendations. I know that ati has official linux drivers but my goal is to run knoppix off of a cd and run roms off of a dvd rom so that I run no risk of anyone messing with the OS.

I work at Circuit City part time in between my 2 other jobs, so I am looking at cards that they cary so I can get my discount.

This video card is a steal at around $50 after rebait, but visiontek has no linux support on their website, its powered by ati so I might be able to use their driver?
http://www.circuitcity.com/detail.js...qp=0&oid=81896

Here is the official ati version of the card above
http://www.circuitcity.com/detail.js...qp=0&oid=73860

Also, is it possable to modify the Knoppix iso to include drivers for the video card if they are not already in there?

Any input is greatly appreciated, thank you.