I went to Fry's and picked up the screws needed for the remaining hard drives. I was not able to get any rubber grommets though. All of the grommets were too large for my purposes.
I then went to Home Depot to see if they had any grommets but they did not either. I ended up selecting some rubber washers that I used instead.
After getting the parts home, I installed the hard drives in the 3 1/2 inch bays leaving one position free between each drive. Hopefully this will provide enough separation between them for heat dissipation. When installing the floppy drive, I found that I had to install between the first and second hard drives. Bummer.
I connected power to all components and tied everything off so air flow is maximized through the case.
My optical drive will not be here until tomorrow so the build will be completed then.