prophetsearcher,
Sadly I think you are also dealing with a dead logicboard(motherboard).
People have suggested all the things I would have suggested. These like the Macbooks are 'everything' on one board designs.
I don't think this will help, but try resetting the System Management Controller (SMC)
Resetting the SMC for Mac Pro, Intel-based iMac, Intel-based Mac mini, or Intel-based Xserve
(in your case you would be starting at step #2)
1. Shut down the computer.
2. Unplug the computer's power cord.
3. Press and hold the power button for 5 seconds.
4. Release the power button.
5. Attach the computers power cable.
6. Press the power button to turn on the computer.
The above steps came from this web page:
http://support.apple.com/kb/HT3964
DO NOT try resetting the PRAM on an intel based apple (this per Apple themselves)