Already did that. Got everything working. I have an external 500 GB drive partitioned into 2 250 GB drives: one for OS9 and the other for OSX -the two lowest drives. The new internal storage is also 250 GB. I left the shielding off the back of the DVD ROM and new SSD; it only gets in the way.
Edited to add: the cable sitting on top of the new HD is for connecting flash drives.