Hi Jack, welcome to the site.
As Tom so eloquently pointed out, using the search function will likely find you answers to many of the questions you may have. Lots of great information to be found out there.
If you have searched, and have not answered your question, then fire away with your questions, and there are lots of folks on here more than willing to help out.
If you are having any troubles with the search features, don't hesitate to ask any of the administration or moderator staff, we will be glad to help you out.