When Leopard comes out I'll probably purchase it within the week and load it up. I have alot of faith in Apple (one of the reasons I came over to the Mac side). While I know there will be a few issues (they can't account for the millions of set ups people have running or what they have done to their macs) I think over all, it should be a smooth transition. So a few questions. My MBP is a little over a month old. I have bootcamp installed for a few CAD and model rendering applications, and I have SketchUp, Office 2004, and CS3 on the OSX side. What would I bnefit from more, doing a fresh install with Leopard, or upgrading it from where I am now? Is there a performance difference? Is the official Bootcamp going to need to be installed again? [insert concern/question that belongs here but I forgot to ask...issues or experiences when upgrading to Tiger.] Thank you!