[Core P5 Issue]

My solution was really simple and easy, since I am air cooling the CPU.  Used the radiator reservoir bracket flat side up, at the lower front, and applied some white vinyl tape to mask the basic metal optical disc enclosure.  There were screw holes on the bottom of the drive plate which worked for me.  Not perfect, but very easy.  This LG tray has a nice full button, which I can operate with my toe ;-) so it's also convenient at floor level.  Here's a quick pic to illustrate: