Hi! I am looking to upgrade the GPU of my Dell XPS 8700, it currently has a GeForce GTX 645, an Intel Core-i7 4770 @3.4Ghz and 12GB of RAM. I'm getting into gaming a lot more and my card is starting to struggle with some of the newer games so I am trying to find something that could easily run a game like Watch Dogs at a steady FPS with decent graphics, but isn't too large to fit in my case. I'm thinking of upgrading to a card in the 700's series, perhaps a 770 or 760? But, with the included power I will need a better power supply so what would you suggest that could have enough power to run these graphics cards? Also, I heard that a 760 would fit, but I'm not too sure about a 770 so could someone confirm this for me? And price isn't much of an issue as I've been saving up for a long, long time! So, please give me your ideas on a good solid graphics card that would work for my system, and a nice steady power supply. (Side note: I would prefer Nvidia over AMD!) Thanks guys