You can use any slimline, standard notebook drive if the mismatched faceplate is acceptable - it won't match the notebook finish.

If you want an exact match, call Dell:

Dell Spare Parts 1-800-449-3355 ext 7269937

It's unlikely worth putting a BluRay drive in this system - the screen is too low resolution and there's no high resolution video output, so it'd be a waste of money.

Thanks! Especially for the bluray advice!