I just threw down an order on a 12'' PB, should be here sometime this week, I hope. I have a few questions: 1. Is there any nifty software utilities that I should be aware for when I get my new laptop? 2. Is there any handy tips sites that have tweaks and such for OSX? 3. Is there anything I should be aware of before I plunge into OSX? 4. Does there exist basic help pages for things like system maintenance (this defrag, etc.. etc..), basic software installation, where configuration files are stored, and things of that nature? I'm a long time PC guy, having never used a Mac for more than a hour at a time, and only when my classwork demanded it. Last time I had a class using one, I think they were running OS9. Thanks in advance!