More suet links I've just found.

http://www.aristotle.net/~asca/suet.htm "Suet is available, usually free, from the butcher at the supermarket", apparently. But you might have to fool him that you're going to make bird feed out of it...

http://nuthatch.birdnature.com/suet.html again fails to mention that it's good for feeding humans too.

Peter