The Sigma6000 is a nice Supergun, but they are expensive & hard to find.
Most of em dont have the S-Video Cable with the unit anyways, you will need to have someone make a cable for you.
I'd suggest buying one of the Superguns that members make and sell in the forums here, they do the same thing without needing an S-Video cable made up for them, cheaper too.
D-Lite had a few of them for sale not too long ago, look him up.