http://www.newegg.com/Product/Product.aspx?Item=N82E16820231342&nm_mc=AFC-C8Junction&cm_mmc=AFC-C8Junction-_-RSSDailyDeals-_-na-_-na&AID=10521304&PID=4169666&SID=1cciphths5eh0 Is this a good 8GB RAM kit for my MBP 2011 13"? I've been wanting to upgrade from 4 to 8 for a while, to minimize the pinwheels of death I've been getting lately. I don't know much about RAM brands. I also see a very similar one in the recommended section for $5 cheaper. Are there any better or worse models, and what factors contribute to their efficacy?