Here is an interesting use for that extra PS3 system you've got lying around your house:

Nick Breese, a senior security consultant at Auckland-based Security-assessment.com, has come up with a way to drastically increase the processing capability of cracking passwords, using a PS3.

By design, PS3 is very suitable for cryptography, says Breese. Intel processors are designed to do all kinds of complex calculations, whereas the PS3 is good at doing simple things very quickly. "And believe it or not, cryptography really is simple," he says. "Lots of simple operations being done one at the time."
http://www.pcworld.com/article/id,14...s/article.html