How expensive are vaccinations?

Does anyone know a cheaper way of getting them, that's still legal?!
I need to have pretty much everything...

Hep B, Yellow Fever, Cholera, Typhoid, Hep A, Rabies, Tetanus etc etc..

(lots of excuse for sympathy and chocolate over the coming months I predict)

and I haven't even started to think about malarial tablets..

guess this is a kind of suffering for the cause... but I don't want to be restricted from being able to care for those kids because of some European fear of illness. It's likely I'll get ill with something at some point, better to be as protected as possible... and then remember all I know about prayer for healing ;) God's got something for me to do out there and he'll make sure I'm able to do it, that's all I need to know.

But if there was a way of saving a bit of money on those Hep B injections......