Hey, I've been thinking for a while about updating my iMac mid-2011 (i5 2.5Mhz, 4GB, Radeon 6750 512MB). I do very light gaming, Starcraft 2, Diablo 3, and World of Warcraft. I've been wondering what you recommend between maybe adding 4GB (2x2GB) and maybe booting and launching app from a Flash drive/SSD drive instead? I've checked the benchmarks on: http://www.everymac.com/ultimate-mac-comparison-chart/?compare=all-macs and the difference between the Single core is like 3167/2464. What you guys think I should do?