Hey Everyone, I'm helping my girlfriend pick out a new computer. I have a 2.4Ghz MBP Classic that is amazing and we're debating between a used MBP Classic identical to mine and a new MBP unibody. We've gone to the store to check out the new ones, and noticed the obvious cosmetic differences. However, there's something to be said for someone who has used the MBP Classic and gone on to the new MBP unibody. Are there any of you out there who used the new MBP unibody designs who also used a fairly recent MBP Classic for a few months? Are there any differences you've experienced between the machines that can't readily be seen at the store when we take 5 minutes to look at the new machines? Things that you'd notice only after owning the machines for a month or so? Stuff like temperature, vibration, noise, or more general computer use due to the glass trackpad and keys. Thanks.