None of this has worked for me. When I try the reset with battery and power out of it and then replug power while button is held in, the fans go wild but nothing else. When I try battery and power out of it, hold power down for 10 seconds, replug Magsafe and battery back in,and try to start it, I hear the optical drive spin once but nothing else. The battery shows fully charged.
I guess my only other option is to disassemble it and see what happened. I think an 85W power supply I had for it that was not from Apple directly, may have done something to it. It seemed awfully warm during the charge process; however, the battery does show charged. That same power supply sparks when I go to connect the Magsafe to the computer. I just hope I didn't fry the board.