I am wondering if a 12" PB will be powerful enough to suit my needs. I was going to get a 15" but i'm not now because of the horizontal line issue and waiting is not an option. This will be my first mac so im not really familiar with the hardware or the os. My primary use for it will be music, work(ms office), and running software such as Starry Night Pro. I want to use it to control my telescope and edit home movies (me and my buds doing stupid stuff). I would also like to use it for some light photo editing. I am also really interested in making my own dvd's (with menus and stuff). I am also a little concerned about the upgradeability of the 12", the lack of a pc card slot scaires me a little. I guess I would just like some opinions based on what i will use it for, any information will be greatly appreciated!