I am planning to buy the new MacBook if they release one at WWDC as rumored. I dont really need it over the summer however I do need it by September 28th when my school year starts. If I wait till July (when the back to school promotion usually begins) do I risk not having my MacBook in time? I have heard of Apple products being backlogged in the past shortly after their release. I will likely be buying one that is customized with their better part options.