I go to buy my video card tomorrow. Also need a capture video.
Do you mean that you need the video card to be able to capture video? If so, then I don't think a GF2 is going to do it for you, as I've yet to see GF2 cards with video-in capabilities. Most of them just have TV-out. Same for the Kyro II.
If this is the case, then between the two remaining cards, get the Radeon if you care about 3D performance. If you don't, get the Matrox.
Nick