I am not that desprate to pay 1200$ or 2000$ for a card which will be for 600$ in few months. LoL, let the rich nerds have it first. I have no intentions to rush into it. :)
Why dont you wait for a while for 1070 and 1080 to be released. They would be much powerful than titan x and one third if its price only. You can ave up the money till then. A PC with 1080 in it would be a gaming beast.
I suggest not to wait for 1070 or 1080 because it will be out and tested after that we would be sure but since you are planing to maxed out 1080p then 970 is decent enough :)
This is normal. You see the fans are temp controlled. It will only spin when the card reaches near max temperature. I would suggest running a stress test like Furmark and do a 100% load test. See if the fans spin when cards heat up or not. If both fans spin at high tems then everything is fine...