2 360K 5.25"
 720K (96tpi) 5.25" ("quad")
 micropolis 100tpi
 3"
 3.25"
 2 720K 3.5", REPLACED with 2 1.4M 3.5"
 2 1.2M 5.25"
 Epson 67.5 TPI 3.5"
 8" ?(Flagstaff, Vista, Maynard, etc.)
 2.8M ? (I used MicroSoulutions "Backpack" parallel port)
 floptical ?(SCSI)
 LS120
 ZIP
 (and also a few obscure others) 
During the 5150/5160 era? The time frame the PC design team was planning for?
Think realistically, please. Not a retrocomputing wet dream.
Even in the 386 era, BY FAR most machines had only two floppies and
one hard disk.
--
Will