I've got a hayes something or other, but one of the magnets which make the pads retract is missing, so they can rub a little bit - no appreciable drag but sometimes make a bit of an annoying rubbing noise.
I'll post it to you for £6.50 though - even got some pad life left...
Or you can have the pair for
Might even have one with both the magnets still there - say £7.50 for that one, or £12 for the pair (think I've only got enough pads for one set though...
Si F