As many of you know forum member Baz Leffler has been converting old Grass Valley controllers to work with ATEM switchers.
Here is his site with more info.
http://www.lefflerpost.com.au/gvg2atem/I bought a GVG100 from from in November that I am now selling.
Normally they cost around $1,750, including shipping, to North American customers so if you can buy a used one from someone like me already in North America, you will save a lot on shipping.
Make me an offer and send me your zip code or postal code and I will provide you with a shipping estimate. Baz continues to develop and support the unit with free updates.
Regards,
Shawn