Last time I bought a MacBook Pro, Apple offered an option to configure it with with a single chip so i could buy memory cheaper from a third party. That option is gone, so I either have to lay aside a two-gig chip and but a four-gig chip to get a total of 6, or lay aside both original chips and buy two four-gig chips to bring it up to 8, either of which choice saves me hundreds of dollars compared to accepting the Apple memory upgrade option, which for educational purchases is $900. I don't want to buy memory that won't be used. Are their any merchants that offer the MacBook Pro 1) originally equipped entirely with third party memory at a cost savings, or 2) originally equipped with a single 2G chip at a cost savings over the standard 2 chip configuration, or 3) with no internal memory at all? Thanks.