Howdy, and welcome to the forums! Let's start with the questions you had...
...opt for the GTX 770, as this gives you the best performance for the money.
Every one of my question about my first build just answered.
I was really really curious if current mobos will accept future processors...lets just hope that by the time i5-4670 is out dated it'll just be worth it for me to build a new computer. Like you said, only a 10% gain from Ivy-Haswell.
How long realistically will a "770, 8gb, i5-4670" setup last?
my plans are:
Cooler Master Hyper 212 EVO - CPU Cooler with 120mm PWM Fan (RR-212E-20PK-R2)
1x8gb Corsair Veng....only question is if 2x4 is better than 1x8
EVGA GTX 770 2GB
GIGABYTE GA-990FXA-UD3 AM3+ AMD 990FX SATA 6Gb/s USB 3.0 ATX AMD Motherboard
Corsair Builder Series CX 600 Watt ATX/EPS 80 PLUS (CX600)
CM Storm Scout 2 Advanced - Gaming Mid Tower Computer Case with Carrying Handles, Black
Samsung Electronics 840 EVO-Series 120GB 2.5-Inch SATA III Single Unit Version Internal Solid State Drive MZ-7TE120BW....samsung rocks
Windows 7 Home Premium