Has anyone considered using programmable graphics cards in aiding crypto attacks? I have not much information on the idea but there is no relevant google links, so seemingly this is an original idea but I would not hold my breath.

Have you had a look at BrookGPU?

hxxp://graphics.stanford.edu/projects/brookgpu/index.html

Pretty wicked stuff.

Wow, thanks that is very interesting. I have something to eat tonight.