Hi Andre, welcome to the Zone !!!
If you are using salvaged steppers they are most likely unipolar, in which case using linisteppers probably makes sense, they are one of the cheapest to make/buy and work really well. Do some googling and you will come up with a lot of info. From memory they are selling 3 axis kits for $90.00 US including parts and PCB's, you just need to assemble them. As far as value for money this is hard to beat.
If you are a bit keen and have access to a laser printer you could make yourself a PCB or three and make it from scratch, if you have friends that are involved in electronics they may have most of the parts to make the board, and you will learn heaps along the way.
Good Luck !!!