I am fairly new to pc gaming and am now getting the bug to want to upgrade every time I see something knew and shiny. My rig consist of an intel 4670k which I hv yet to overclock but will do when I am confident enough to do so, as well as 8GB of Kingston HyperX Beast RAM and a factory overclocked KFA2 GTX 770. Im happy with my rig but ever since getting my pc I've become a bit of a graphics whore and want to see everything maxed out at 60fps. Now this is probably very foolish of me but nevertheless it is hw I now feel which sucks because nw all my games on Xbox One look like shit in comparison and I no longer touch the bloody thing after forking out nearly £500 for it, which by the way I had purchase before my pc. Anyway with the upcoming game Watchdogs coming out and future games looking rather taxing on systems, I feel I need to upgrade. This new deal that allows for a free code for Watchdogs with select Nvidia cards made it feel like the opportune moment to purchase an upgrade. now as I said I'm very knew to this pc stuff so I was unsure as to whether I should go SLI or just fork out the extra cash for a better single graphics card. I run my pc through my 1080p TV due to lack of space and I just prefer to play with a controller lying bk on my bed then with a mouse and keyboard. So 2 770s in SLI sounds like a tad overkill just for 1080p gaming but its far cheaper for me to go with SLI then the other option which is a 780ti. Im also worried about heat as I'm not sure hw hot cards get in SLI, I only hv a mid tower case therefore less space and air to flow around, plus would it be a waste of time considering some games don't even support SLI and therefore I am just wasting power and producing more heat when only one graphics card will be utilised.
Anyway the fact of the matter is for 1080p gaming I want to play games like watch dogs, Metro Last Light, Crysis 3 on ultra at a solid 60fps should I go with the cheaper option which would be the 2 way 770 SLI which comes to around £380 and thats including a Corsair RM 1000W or the rather more pricey option the 780ti which comes to £630 with the Corsair RM 850w which I'm not keen to fork out that much for but if I'm better for it I will. I do apologise for the incredibly long question but any answer would be much appreciated.