You're a bunch of bloody cheapskates you really are!!!!
Go and pay PADI a Billion dollars/pounds and you would'nt get half that great advice......, or why not try IANTD/TDI they must have a three or five day course that will help, with some interesting photocopied materiels thrown in...I think they call it a shorts and tee-shirt/semi-dry/drysuit/wetsuit crossover!!
Plus play your cards right and you may get to travel to the other side of the world to do it.....Nice.
....thats probably why I'll never get past my Bubblemaker qualification....
...bugger!!!
Please dont flame me....I'm only kidding!!