Welcome aboard.
This is without a doubt the best forum on the net and the best people. With what our modders have done for SHIII (GWX) you will never have to buy another sim for excitement. Since you are new you will continue to have questions. Ask them. All forum members are more then willing to provide you with information. I have a site below for mods and reference material. Most, if not all, of the stuff on the site has been provided by forum members. It may be worth you taking a look at.
http://silent-hunter-addict.com