Would like to say that i got a msi 970 gaming gtx. Love it. maxes everything i play at 1080p and is playable at 1440. at almost max for 5760x1980 most are very playable. far cry still uses 3.8 gig of v ram and only hits 20 fps at ultra but toned down its great. Next step i decided is a i5 4690k and a sabertooth m1. got a corsait c70 vengance case to put it in to retire my old aurora case.
I thought switching to Intel was out of the question .
Don't get the Sabretooth. It makes no sense on Z97. Get yourself an ASRock Z97 Extreme 6. Which, incidentally, probably has better sound than your soundcard, unless you have a card based on CMI8788 with good caps and a headphone amp. ($200 class soundcard)
The Ex6 has way more features than the Sabretooth does and overclocks just as well. Go on the manufacturer websites (ASUS/ASRock) and read their propaganda pages for the boards. You'll see that the Ex6 has way more features.