The good news is that I actually don't care that much if onboard audio won't work well, because I pretty much always intended to upgrade to better (external) audio anyway! That's where you guys come in.
Its VIA chipset has a kext available to get it to sort-of work, but reviews are pretty harsh on that front. The downside to mATX hackintoshes is that there's no one motherboard with quite the OS X compatibility of certain ATX mobos specifically, I'll be going with a Gigabyte Z77-MX Thunderbolt board that has native sleep/wake with no DSDT, but fails in one very important respect: audio. Short version: I need a USB audio device to replace internal sound card and serve both analog and digital audio to several components. Did a search but didn't find anything specific.