if the disc doesnt spin at all then it is more than likely one of the onboard fuses have blown, i repaired one of these about 3 weeks ago, all u need is a 15 watt soldering iron and a multi meter and a new fuse (i got mine from an old p3 mobo)
it is a daunting task and does take time, but will be cheaper than buying a new one
jon lewis, April 2007