I have the same LG drive too. It is great.
I followed your advice and got an 8320. They were fresh out of 8350s.
I also got an H100i, a second 7850 and the new mobo arrived, so it's a full rebuild.
Still waiting for the SSD I RMA'ed some ten days ago.
Will post pics when I'm done.
I killed my 8120 when removing the DeepCool heatsink. The mounting bracket had so much pressure on it that when I undid the one sided fastener the whole thing sprang free, bending a whole lot of pins, before giving me time to twist it lose, .
It wasn't a great thing anyway, but I could have used it for a back up rig.
Luckily no pins stayed lodged in the socket, so I can still use the mobo.