Hi All, I've planned to purchase a rMBP 13inch (2.7GHz) but I'm not sure which RAM configuration to go for. Should I simply get the base model with 8GB RAM or get an upgraded 16GB ? I won't be doing much Video editing or photo editing but the machine must be snappy (very quick) during boot-up, sleep & wake, launching many apps and should be extremely responsive. That's my expectation. It'll be good to understand more about RAM and the difference it makes, considering there's already an SSD in the Macbook. Thanks !