An old teacher of mine offered to sell me his G5... said it's dead... and I can probably pick it up pretty cheap if I can get some advice here. Apple Care expired months ago. He said he moved it from his house to the school, and it stopped working. He can hit the power button, the white light comes on but doesn't stay on. He took it to the local Apple Store, and they said it's "probably" the logic board, and that it would be $900 to replace. Any suggestions? If I can pick it up for mere money and spend a little to get it running, I'm all for it!