I picked up a 12" PB for 160 USD today. It had a bad battery and noisy and seemingly non functional optical drive, stock configuration. Looked like someone tried to open it up and failed to put back one of the hinge screws. I believe this is causing a green line (crimp in the video cable) on the screen. My question is: I have never replaced the optical drive on one of these. I bought this for a friend whose ibook died and he has a nearly brand new dual layer ATA superdrive in it that I can replace into the Powerbook. I knew this was daunting. Then I really just looked at the ifixit steps and yeah, you have to dismantle the WHOLE computer. There are 46 steps to replace the optical drive! Has anyone attempted this? I don't understand why you have to take out the logic board to get the optical drive out? On the upside, the near dead battery is eligible for the replacement program, so Apple is sending a new 125 dollar battery. Sorry I am rambling, just freaked at how much work it is to put a new optical drive in these things. Major surgery. someone on MR said they did it before.