I have a P4 box with a VGA out that I want to run into a 22 inch monitor (maybe w/ HDMI input) for a TV for video and I have a 5.1 sound card for it that I will run into my sound system.

How can I plug my Wii, xbox, and ps2 into this setup? To me, it makes sense that I would want a composite to female DVI adapter or something similar but I can't find anything. I am aware that the sound from these composite devices won't be 5:1.