I'm brand new to the world of the mac. I've been a pc user for years and have finally decided I'd like to try out a mac and plan on getting a macbook pro. I have two questions. 1. If I buy a macbook directly at the Apple retail store, do they have various configurations in stock? I.e. if I wanted a 15 " 2.4 ghz, 200 hd, 2 mb of ram, is there brand new stock of that specific configuration on hand or are there only certain configurations? Just trying to find out if I should just buy online instead. 2. The new operating system, leopard, is rumored to be shipping sometime towards the end of the month. If I wait for the official shipping date and buy a macbook then, do you think the retail store would have the OS preinstalled already in their stock? Thanks, Eagerly waiting to be a mac user!