I would have to say that one of the Life Sciences category would be the best to put our processing power to. It might help save you or your kid's life someday.
-dual 366 celery at 600Mhz (until I WC it)
-950MHz Athlon
-750MHz Athlon(have to replace caps on the Abit mobo

)
-Parent's decent speed (1GHz or so) E-Machines PC
Am currently building a 1.6A or higher P4 watercooled system.