I got a new 2.2 SR Macbook pro last Thursday it is speedy and I have no yellow screen issues but began noticing two annoying problems. The first is that I get a metallic "plink" noise every once in awhile. Its not very loud but has become like water torture especially when I'm in my quiet office. From doing some research I've read that its the hard drive heads parking. I hear that this is a safety feature but I also read about so many silent macbook pros out there and also have read a few forums including on the apple site with people discussing this same sound issue as not normal. The second problem is that sometimes some of the keys are unresponsive. I notice it mostly with the "A" key but some others do occasionally do it too. I downloaded the latest keyboard fix and it still does it. So.. I bought the computer for $1499 at my school, I thought it was a good deal and so jumped on it. But I also got the last one so they can't exchange it for a new one for me. They said that they would take it back and allow me to pay the difference to upgrade to a a 2.4 penryn for $1799. My other option would be to send it to apple but not sure that they will fix the problems. Do you think I should just cough up the extra $300 bucks and get the Penryn? I really don't mind paying it if I get one that I'll be satisfied with. But I also worry that there is a chance that getting a new one will have its own set of problems (i.e. yellow screen, loud fans, warping, etc.). Is it worth taking the chance? Thanks for your advice.