Great to Hear, this is answers a lot of my questions. I am working on an event for the beginning of June and that's really similar to the setup I want to do. I was going to get a second computer to run Mapper and Grand VJ on but I don't know if I can afford it now, and I don't think Syphon can work between 2 computers. I want to build a 3d screen with box like surfaces, and it seems like I need a second VJ software to create those cool effects where it traces the edges of the boxes, and to create a second feed like if I want alternate surfaces to be ambient content or logos. I wanted to go the Mod 8 route, but I currently own NuVJ, and Arkaos is allowing all NuVJ licenses to upgrade to Grand VJ for around $175 through July. Arkaos is going to have a video mapping plug in for Grand VJ, but it doesn't come out until June 1st (the first day of my event) plus the garage cube community seems to be pretty cool like the ME crowd. My only other issue is that I VJ off of a Mac mini from November 2010, and it doesn't support thunderbolt. If I buy a compatible Matrox component, and things don't run smoothly, I can't use it on a newer computer. Code:E, Have you run ME, Serato, Grand VJ, and Mapper at the same time?