[nst7]

Yes, the computer running Video Satellite needs to be PT8 LE, or PT 9 or 10 running natively. Since you have a G5, running 9 or 10 is not an option. You could try to find a copy of LE8 somewhere, but it would need to have an LE interface connected to run, and I'm pretty sure you could not have both LE8 and HD8 installed on the same computer.

The cheapest solution would probably be to get a license for regular (non HD) PT 9 or 10, and install the software on the cheapest Mac Mini. You would not need any audio interface hooked up, but you would need a separate Ilok hooked up, which would hold the Protools license, and the Video Satellite LE license.

Of course the Mac Mini does not come with a monitor, so you would need to use an existing one, or get another one. If you want to use a Black Magic device with that for video output, you could look into one of Black Magic's new Thunderbolt devices. (Note that they also have USB 3.0 units, and in a few weeks there will be new Macbook Pros with USB 3.0 introduced, which would be yet another option).