I've been waiting the MBA refresh but was thinking if it's only processors and nothing else, I'll probably have to pass. So if I get a 13 inch MBP with 4 gb (upgrade to 8gb on my own) how much difference does an SSD make? Are there benchmarks online somewhere? And does the SSD help gaming performance at all? The 15 inch is too big for me. Main game I am concered about is Skyrim.