I'm buying a new MBP. The questions that remains to be answered is whether I buy it this year or if I should wait until next year. Ultimately, I don't need it right now, but considering they have just been upgraded and the potential black friday deals could be more than apple usually offers should I buy now? I don't think there will be any announcement on the MBP at MacWorld, so I think any updates will not be seen until late spring. Thoughts?