I currently have Core i5-3570K Ivy Bridge Quad-Core 3.4GHz (3.8GHz )Turbo that I have overclocked to 4.1GHz on an ASUS P8Z77-V running two MSI GTX 760s. I am considering upgrading the cards to a single GTX 980 ti. I am also thinking of buying a G sync montior. What is the best way to spend my...