I've added Bitcoin to the payment options.
I've added bitcoin payments, via the API available at http://blockchain.info/
Originally I was planning to run a bitcoin server locally and do it properly, unfortunately this is a prohibitively expensive (in terms of server bandwidth/space). So I ended up deciding it was simpler to use blockchain.
There is of course a risk in relying on a service provider for anything like this but its probably less of a risk than using paypal so we shall see how it goes.
The API is low level enough that we can switch to a locally hosted solution at a later date.
Behold its magnificents at http://dime.lo4d.net/dl/bitcoin
and if you go there right now you get to see it when its in a horrible mess before its been made pretty by the art department :)