Thanks SomeJoe. Unfortunately, I do not have case type 1. Only one side of my case can open. I did a bit of searching and I found the servicing guide for my computer. It's here (pdf): http://h10032.www1.hp.com/ctg/Manual/c00311110.pdf

The way it explains in, for hard drives, only two screws are tightened. For disc drives, no screws are tightened, they only serve as guides. In that guide, it shows a second hard drive bay. My computer doesn't have that second bay so I'm going to place it into the floppy bay. So I'm not sure if it's still safe to only screw one side in, especially since the drive won't be resting ontop of a ledge or other drive.

I though of something else that might work. On the far side of the cage, there aren't any screw holes. It's one long empty strip. That's what the guide screws would slide on if I were to be installing a floppy drive. So I guess I could place in two screws halfway into the drive, then slide it in through the front of the case. Those screws would rest on that guide strip. Then I would tighten the screws on the side facing me. The only thing is I would have to take of the front of the case to get access there.

This leaves me with another question though, which would make or break this whole plan: can a hard drive fit through the height of a floppy bay? If it's too thick, it won't work.

Also, is this plan flawed in any way?

Thanks again for any help. Also if I can find my camera, I'll take some pictures of the cage to show what it is like.