Im considering buying a MBP (my first Mac) however im very concerned about the number of horror stories in the forum (I realise that forums are full of problems by nature) however some of the posts I have been reading about: yellow screens, bulging batteries, buzzing noises, head phone noises, warped screens, general poor quality cases are very worrying. I dont want to spend a lot of money on something that I will have to keep returning to Apple / and arguing with store managers to get replacements / refunds etc - that does sound fun!!, until I find one that is defect free, are these isolated cases? - does anyone have a new Penryn MBP that is "defect free"??