From what little research I've done (read: googled it, looked at 2 things, gone "yup that's enough for me"), while Ivy Bridge does work, it seems OC'ing is disabled. Now, what I couldn't find (read: couldn't be arsed finding out) was if this applied to all boards, as it seemed that some people think it only applied to the B2 boards (if you're not familiar with this mobo - there was a recall due to the chance of dodgy SATA ports, known as B2 boards. I use all mine, so I experienced it, so mine was replaced).
I used Anandtech Bench to check the 2600k (no 2700k in their benchmark) vs 3770k and there isn't much difference. Plus, I heard the 2700k OC's better, which is the reason I'm doing this upgrade
Also I'd be remiss if I didn't say, earlier in this thread I mentioned a guy on eBay ignoring me. He got back to me, my emails were going in his spam folder (happens to me all the time as I have my own domain/email server), he wasn't ignoring me at all, and he's giving me an awesome discount on his eBay listing price. I know I didn't name him, but if it was reversed, and I came across this, I'd be peed off ha.