So I don't have an old PC to salvage the magnets or fan out of. I have no problem building quality DIY projects but is it really worth it? I priced it out at Radio Shack and these are round about prices: Project box $8, Fan $10, Switch $3, Rheostat and Knob $5. +SH this would equal about $38 and that is not including the magnets. Those of yall that have built stir plates or other electronic devices what do you think? Is the DIY stir plate worth it when I can buy one for $50? Are there better sites out there that would carry everything I would need for cheaper? I know RS probably charges an arm and a leg for simple things but I cant seem to find another good site. Thanks for the input.