After drooling over the Macbook Air for a year or so, I finallly took the plunge. I got a used (suposed to be like new) Rev A off ebay pretty cheap after Bing cash back. It will be here tomorrow, but until the other day, I did not relaize there were 3 revs out and that I got the oldest one. It sounds like many people say the Rev A is slow and problematic, but after finding windows Vista scores higher then my Dell XT, I expect I will be happy with it. So now I am looking for feedbacl. Is there something I shoudl do when I get it, like opening it up and applying arctic silver on the CPU/GPU? Or any software tweaks I shoudl be doing? This is my first Mac, so it will take a few days to get used to the new OS, but I plan to put Windows 7 on it in a few days anyway. I might swap out the HD forst so I can just swap back to Mac OS if I want. Thanks for any feedback.