Thanks Oli.

The other question I actually inted to ask was how much processor/gpu load does running 4 composite ins and an hdmi in take? I am on dual 2 core sept07 mac pro 3ghz with 1900 graphics.

I tend to use preview submixes a lot, and 2 tripleheads running in dual widescreen mode. Will I have to reduce this and/or movies if I add more video ins?

Cheers.