Don’t you think the apple care one year is too short? Don’t you think to buy 2 years apple care is too expansive? Few months ago, my powerbook’s Logic Board was out of work by some reason. I wish I could fix it by myself. But, I have no clues to fix my powerbook. I would like to introduce you the great web site which teach us how to fix and upgrade your mac system. Please check out the following url: http://www.ifixit.com/Guide/ . Enjoy it.