PWP:
I went down to London in September (i think) to see Comair, and I must say that as cynical as I am, I think that their scheme works out to be an OK deal.
They will fly you over from the UK to have a look round, but only give you the money back if you sign up, and only up to a certain value.
I was looking at doing the FI course, but had too much flying to get a visa to stay there and instruct, would have done it otherwise.
Good luck.