I'm buying a MacBook Pro soon and would like to upgrade the RAM to 8GB (yes, I DO need it). However I am not willing to pay the god awful price of $1000 for a 4GB bump from Apple. There are plenty of 3rd party 4GB DIMMs that sell for $300-$400 and I could buy two of them for less than the price that Apple wants to charge. But even those are quite pricey. Does anyone know of a source to get 4GB DIMMs for a more reasonable price of around $200 or less? They would have to be at least 800Mhz.