http://www.ebay.com.au/itm/like/331236584364?limghlpsr=true&hlpv=2& ops=true&viphx=1&hlpht=true&lpid=10 7&chn=ps
A $5 geared stepper off ebay is a relatively painless way to go. They come with a uln 2003 driver chip, or hook up an easydriver board and pulse with an arduino or something similar.