Hi guys, I have started to use my macbook pro for gaming (not wise really, i know), but i have what i have. I have the 2.5ghz i5, with 4gb of ram. A couple of the simulation games i play are lagging and have slow response times and I want to improve the overall experience but being able to have the graphics a bit higher than 'low'. Eeventually i will upgrade both, but for an immediate impact what would be better? 16GB ram or a SSD? Thank you in advance.