What cables to get for my 1409X

Ok, I need help determining what cables to get for my Dell 1409X projector. Here is the list of devices that I want to connect to it:

(all devices are in the same room (12x13) and all need to be connected to the projector at the same time)

2 computers
Cable Box
DVD
Wii

Now, I'm gussing I'll use the two VGA connectors for the two computers. For the Wii, the composite video should work nicely. This leave two devices: DVD and cable box. I want the DVD to have the best possible picture but I would like to be able to use the HD from the cable box. Sooo, should I get Component to DVI and use the S-Video for the DVD?