Yesterday at the local Goodwill computer works I picked up a sealed box of 10 Verbatim 800k floppies for $3.00. These are prefect for the 512k I want to get going again.

They had a buy one get one free sale on media so I also got a sealed box of 10 Imation 1.4Mb floppies, but the great part is they are unformatted. Since they are unformatted they make good substitutes for 800k floppies.