If the fan noise is your main annoyance, then just make a custom fan speed profile with MSI Afterburner. It's a pretty common problem/solution.
If I was you, I would have wait till the next gen for upgrades, but if budget isn't a concern than my personal 580 favorites are the MSI Lightning and the Gigabyte Windforce versions.
I would love to suggest you a 6970, but lots of cases about driver issues prevents me from doing so.
And BTW if you could mention your resolution it would be helpful :)
Here are the rather excellent reviews of the GTX 580 cards by HWC:
MSI GeForce GTX 580 Lightning Review Gigabyte GTX 580 Super Overclock Review ASUS RoG GTX 580 Matrix Platinum Review