About a month ago I contacted a photographer because I wanted to get into the wedding business.
He accepted my request and he took me with him to a wedding, now:
The Bride called my up a week ago telling me that she didn't like the photographer images and she asked to have a look at my photographs instead.
I set up a gallery for her and she contacted my back very excited and happy about my work, making me so happy as well.
Photographers say that you have to know your client to work out a price, well I don't know how much their budget was but they hired a Limousine and a Cadillac for their wedding, this is what I've seen.
How much do you think should I charge them for about 30-40 photos, retouching and the time spend at the wedding?
I was thinking between $500 - $600 (Australia)
(By the way I didn't get paid by the photographer and he didn't tell me the client tried to get in contact with me)
Why would the client tried to get in contact with you without seeing your photos first?
You are asking us how much you should charge. The best person to tell you this is the original photographer. He knows the market and he knows the client.
One big lesson that you should learn from this is how much to charge, this is the most important information you can get out of this experience. Even if the PRO does not want to share any money with you, but you know what is the right amount to charge for your local market you will come out ahead in the future.
As far as the number you proposed ($600/40), that is $15 per picture, it sure does not sound like you value your time much.