Just some topic for in between.
Yesterday I found this video on youtube in which a guy is presenting the KryoFlux - USB Floppy Controller. You can compare this solution to the Catweasel I've mentioned earlier. Except this one ist controlled via USB.
I have to say that I didn't knew this thing before and If I wouldn't have my other solutions which are acceptable at this time I would probably buy it! The usage seems to be very easy, fast and "one-click"-like.