TH2Go or quad head videocard?
What about using a quad head videocard instead of the Triple Head to Go? Like the Sapphire Radeon HD 4850x2? It costs less than the Th2Go, for which you still need a graphics adapter in your computer. Which can't be a cheap adapter because however the TH2Go has its own drivers, those pixels have to be pushed through the original adapter somehow.
The only advantage of the TH2Go that I can imagine is that you can correct the virtual part of the image that is behind the besels of the monitors. Or am I missing something?