I'm looking to go to a normal ATX board to be able to support 2 GTX 580 cards as my current one will not due to it being a micro ATX. Looking for the best recommendation to upgrade. Price point at the moment is around $100 and no more than $115 before shipping. If necessary my current case is an Antec 900 Ultimate Gamer case. If possible I would like the board to have a SATA 6gb/s port as well.
But keep in mind, that with this cpu, you will most likely not benefit from a SLI'd GTX580. So before you get a second one, you should upgrade your CPU. And just a small hint: always upgrade CPU+MB at the same time or you might gimp yourself in the future.
(If you get a new MB now, and plan to upgrade the cpu in 5 months, then in 5 months there might be a newer/better generation which will not run on your MB)
Why do something simple, when there is a complicated way?