I'm upgrading my PC this winter and the cheapest and most effective upgrade I could do to my GPU setup was to go from 1 GTX 760 to 3. I was thinking 2 but I have a larger budget then I thought. Is having three graphics cards complicated. What kind of cooling and power supply would I need? Is an NZXT Phantom 410 mid tower case enough to house the cards. Getting 2 more 760's cost around 520-540 dollars while getting one 780 or 780ti costs around 700+ and if it works I get great performance.