Hello, I have a cMBP 13 Mid-2012 with 4GB of RAM and wanted to upgrade to at least 8GB. I know Monday is "Cyber Monday" and there are supposed to be tons of great deals, but I have yet to see anything for RAM. I want to make sure I get the correct kind of RAM (1600mhz, but what about latency?). Anybody see any deals out there on compatible, reliable RAM? Thanks!