Hi guys, I have a Mac Pro 4.1 and need to drive 6 projectors for an installation and need a 7th for monitor support. I was wondering what setups people would recommend? I've heard i can put 2 5770's in but they seem like really old cards now so looking for something with a bit more grunt than that. Also it would be nice to not have to get an external power supply if possible. Has anyone managed to successfully get 7 outputs running from a 4.1 model using anything other than 5770's? Would really appreciate some advice. thanks!