First post here (though I've watched the site for months)... many, many more to come. I'm buying my first Mac soon, and I want to start at the top. Basically, I'd like a d2.5 w/250 gb internal hard drive, bluetooth w/keyboard and mouse, built in ethernet (I believe you have to buy this with revb.) and about 4gb of ram. I've decided on getting the 1gb sticks so that in the future (when I recover some of the $ from my upcoming purchase) I can max out my g5 w/ 8gb of ram. My main question is, is the apple store the only place I can buy this configuration or could I go somewhere cheaper? I have the educator's discount, which should make the hardware purchase a no-brainer, but if I want all of that memory can I buy and have it installed somewhere else? Would this void my AppleCare and warranty? Could I buy all of these extras elsewhere for cheaper and have a certified apple technician install them? Thanks for the help!