General Stuff

I was sitting here compiling KDE from HEAD and got this idea that I need to make my own hardware random number generator.
There are lots of projects to collect white noise and send it to a soundcard through the microphone input on a soundcard, but I don't have a soundcard in my server and all PCI slots are already used by ATA133, SCSI cards and NICs so I need something else.
A device that send the random bits to a COM-port, standard PC 9 pins is the answer.

A few years ago I was reading that using radioactive decomposition as a source for random data is by far the best method to use, although a bit painful. It turned out that I do have some Am-241 (40kBq) available here after some searching, so all I need to do now is find out how the hell I get random bits from it.
I'm going to ask one of my former teachers if he know how to do it. But if there's anyone out there that have done it, please do tell.