Welcome to the forums! Most everyone will be busy attending Dreamworld over this weekend so the forum will be a bit quiet. If you have the ability you should definitely attend.
If it's info about Stormtroopers you're after you should head over to the FISD forum at
www.whitearmor.net and sign up there and say hello. They'll be able to recommend sellers for armour and accessories that you'll need to get set up as the latest addition to the ranks of the 501st. Also, don't be afraid to ask questions on this forum as well. There is a lot of very experienced costumers here and chances are very good they'll be able to answer a costume related question.
Have fun!