I got you with the subject header didn't I?
This isnt so much a post asking for help, but a post to potentially help others out there.
I was looking for a way to stop bittorrent data flowing out of my network. I was looking at potentially buying a Juniper SRX - I currently use pfsense.
As luck would have it, pfsense has gone to a 2.0 release in the weekend which fixes support for such an application
Have put the rule in and now feel a little more safe
What are others out there doing?