Hey, justDIY, what did you mean by "old printers?" I have one I salvaged out of the neighbours trash (yeah, I'm one of those guys), and it looks like an hp inkjet about five years old or so. I've wanted to get into steppers, but for want of time, so maybe I should tear open the printer and get what I can? Also, and I know this may be contrary to the spirit of DIY, but the SN754410 IC has built-in flyback diodes. Although you'd need two to drive two motors, it could cut down on overall components.
Incidentally, where I live right now everybody puts their big trash (you know, stuff that can't fit in a garbage can) out on the same night, one night a year. Man, the scavengers come out of the woodworks! It's like a garage-saler's free shopping spree.