Hey guys, thought I'd discuss this with those of you looking at a Sony Z series, Sony F series, etc when looking at MacBook Pro alternatives since it looks like Apple will never release a computer with a new processor again. I grew tired of the wait, and purchased a Sony F series, you have probably seen (and have been annoyed by) my comments about the experience. It's been great, that quadcore i7 blows through my daily paces of photoshop, programming projects, games, etc. The battery life isn't so bad either, easily besting my PowerBook G4 (I had a MacBook, that.. was much better though). Build quality seemed good. Initially. It is more physically solid than say, a MacBook. However, this is only superficial. I quickly became disenchanted when my first unit's power supply started making clicking noises, and its LED started flickering. Concerned, I immediately took that machine back to Best Buy and got another. I noticed that my replacement had noticable hard drive vibration when sitting on a table, but passed that off since I've had laptops that did that before. However, I quickly noticed the front edge of the machine was kinda sharp, moreso than the first F, and then the power supply started doing the same thing. This time, I noticed that when plugged in, any lights on the same circuit will flicker too! .. Interesting watching this at college. So I went to Best Buy, hoping for another exchange. The CSRs there decided nothing was wrong, and sent me on my way. Yesterday, a couple of days outside of the 14 day return window I notice dead pixels on the LCD. F.... (now I know why sony calls it the F series....) So I called Sony tonight, so far I've heard good things about them, and am greeted by someone polite, who after hearing about my issues tells me that I'll have to mail the machine to them in San Diego, and it'll take 9 to 14 days to diagnose it.... update: They will be fixing it onsite Thanks Sony!