Hello, I have a 2011 13" MPB 2.7/i7. I am thinking of upgrading the RAM from 4GB to 8GB. Do you think this would create a significant gain in performance? Will I finally completely get rid of the beach ball? I get that when I have Lightroom 3, Aperture and Swift Publisher all open and switching between apps. My second issue is I really do have serious fan throttling on this Mac. The fan noise is so intense it got me scared the first time and I had to step back thinking the machine would explode (seriously and honestly, no lying, no exaggeration). Is this inherent in a Core i7? Does this happen when the CPU tries to overclock itself? Example is that it happens when I run Geekbench alone. Thanks for any thought.