Floppy / USB Emulator for MPC3000

I see this topic has been discussed before, but it's been a while and I see so many emulators out there now.

Can any one confirm which will work with an MPC3000? What specs do I have to look out for?

A simple search on Ebay showed me ones that are as cheap as $25.

http://www.ebay.com/sch/i.html?_trksid= ... &_from=R40

This has been discussed to death recently, I suggest you find an existing thread and read it through. Kind of help yourself a little bit, the hard work is already done...