Well, I was having a look around JustFlight, and I found that it had a C-130 which worked in FSX. One problem, I can't seem to find the Buy button. So I went on Captain Sim, http://www.captainsim.com/products/c131/
I found the pack I want, but do I have to have the base pack, or can I just have one pack on it's own?
EDIT : Never mind, have bought Wilco A400. One problem, how do you open the cargo door? It says Concorde Visor Retract/ Extend, but that isn't opening it.