I've been shopping around for a new Mac Pro but with the likelihood of new models coming out in just a few months, I can't justify spending all of that money now. My new plan is to buy a refurb and then sell it when the new upgrades are out. I have two questions: 1) How well do Macs hold their value? Can I expect to get most of my money back if selling in a few months? 2) How hard is it to migrate all of my files, preferences, etc. from one Mac to another? I wouldn't want to spend ages transferring everything from the refurb to the '09 model. Thanks in advance.