|"It may be expensive, but ill save some cash on the electric bill and the psu will most likely last a long time considering the price"|
Huh? the more you pay the better it is? Really? Sorry, but hardwired is better than modular. Each individual connection is a potential failure point plus modular is always more expensive due to all the extra connectors, plugs, & cables. It would be best to avoid them.
And how are you going to save on electricity? A PSU only churns out as much wattage as necessary. You certainly don't need an 850W PSU for your build but if you wanna overspend on something you don't need, that's your business. If it were my system, I'd get the 750W for $60.
BTW, an overclocked GTX 760 consumes approx 160W under full load: