I'm after a bit of advice from the MacRumors hive mind, if you please. I'm going to buy my first Mac, a 15" 2.33 C2D MBP, in the New Year (don't need it before that, so I thought I would wait until after MWSF in case iLife gets updated). I am trying to decide whether to buy the 120Gb HDD stock model from our local Apple store or to get the 160Gb HDD as a CTO option online. Obviously this partly depends on my storage requirements, which I'm in the process of estimating - I currently have about 55Gb of data, but it's hard to be sure how quickly that's going to expand! However, I could either go down the larger internal HDD route or get the smaller internal drive and buy an external (if required later) if there was a compelling reason to go stock over CTO. I wondered if there were any other factors I should take into account re: where to buy. As I see it, the pros and cons are: Buying online: can CTO, but if I buy CTO I'll have to ship it back if I need an exchange and there may be (according to some posts I've read on here) more chance of issues with CTO machines than stock. Buying in store: immediate satisfaction , can easily do an exchange on the spot if I need to but can't get CTO options. Anyone think of any other things I haven't considered? Anyone got any comment on whether you're more likely to have issues with a CTO machine vs. a stock one? Thanks!