Just wanted to get feedback on how everyone who had a previous 12 inch Powerbook/iBook adjusted to getting a 13 inch and/or 15 inch MB/MBP. Going into Apple store tomorrow and I am going to purchase a new computer to replace my aging 12 inch Powerbook (still a great computer, but the fans are getting a bit too loud). I'm still up in the air on which model I should get - 13 or 15. Leaning towards the 15 as portability is not a big factor to me anymore (Recent college grad and won't be taking it to class anymore; just desk to bed really. Ha.) How was your user experience? (Normal tasks include MS Office, Safari, iTunes, iPhoto - nothing CPU intensive) Thanks for all your feedback!