I was also looking for a PCI floppy controller for a 5 1/4 drive. Not a lot of luck.
My problem is that I didn't pay close enough attention to the mb specs and didn't realize that a lot of them now
come with no floppy interface at all. My old system died suddenly and I hadn't transferred all the big disks over to
the hard drive or cd. And didn't realize the loss of the connections until I had spent too much time without a
working system to return the mb & start over. I added a 3 1/2 external usb drive but had to add it to a powered
hup as the mb/powersupply/whatever wouldn't reliably recognize it at startup. The bios has options to recognize
it as a floppy and XP doesn't seem to have much problem using it ( just slower than a mb-connected drive ).
However, I did find Device Side Data has a FC5025 interface at
http://www.deviceside.com/fc5025.html
It's not cheap at $55 and $5 shipping but looks like it could work. But at the moment I can't afford it.
It connects the drive to an internal USB connection.
Has anyone else seen this? My other option may be to rip apart a 3 1/2 usb drive & hook that up somehow.
The only problem might be that it needs to be on the inside for power & outside to usb connection.
Any thoughts? Other than the obvious about outdated equipment.