Learned Denizens of MacRumors: My 19 year old son is headed to Europe to study this summer. He has an imac, but neither of us thinks it is a good idea to take that with him. He suggested getting a mac laptop off of ebay. He says the prices are between $150 and $600. I note that currently there is a refurbished MacBook 1.83GHz Intel Core Duo listed on the online Apple Store for about $800. My gut reaction is to get something from the Apple Store rather than worry about what might or might not arrive from an unknown ebay guy. I will appreciate any thoughts and alternative suggestions that you might have. Thanks.