I have a 2008 17 inch model which I am selling and have purchased the new 17 inch Unibody due to the promise of better battery life. I assume there are those that are having no issues with there new units, but after reading all of the negative posts, and not so many "positive" ones i am a bit concerned about my order which was placed a few days ago. For those having issues, are you convinced you still made a good purchase? Do you feel Apple will resolve with a software update? This will be my second MacBook Pro and I have had no issues with my first. This is my first post so go easy on me please..... thanks all.