I'd like to get a larger hard drive for my MacBook Pro. However, I'm worried about upsetting the delicate balance between battery life and hardware performance. The articles I read seemed to mostly be about how to actually replace the drive. I'm trying to figure out the best drive to replace it with. This is the one I'm looking at: http://www.newegg.com/Product/Product.aspx?Item=N82E16822136459 Does anyone have an insight here?