Am I just being overly paranoid here or do I have viable concerns on purchasing a Macbook next week. I'm reading about discoloration to the plastics, cracking, CPU whine, and now the issue of the audio popping when connected to speakers or headphones. I would love to have a Mac laptop, the size, price, power, and weight are a fantastic value compared to a PC with the same specs in all those areas. I mean I will be getting Applecare, but reading all these concerns on here raise many, many red flags for me and make me not want to purchase a new laptop.