Hi Guys, I have been looking to pick up the Top of the line 15' with the Gt 750M. I however see so reason why I will need (now or in the next life) 512GB of flash store space. I am more than happy with the 256. Just when i thought that the processor upgrade will be offset by choosing a smaller flashstorage, the top of the line does not have this option. It locks you on to 512 or 1 TB. 1. What are my options ? Can I write to apple/call them up and ask them to customize the top of the line and give me the 256 ? (If yes, i'd greatly appreciate contact details in the US of how to reach them and have this done) 2.Is there some other non-apple store that will do this specific configuration for me ? Thanks a ton guys.