Learning about lighting

My friend's wedding is planned to take place outside, but if it rains of course it will take inside. I'm learning about lighting to prep. There is a lot to it. Fortunately I have a year to learn. It looks like it can dramatically improve one's photography. 

Kwtracey - I cleaned my sensor last night! I don't seem to have damaged it and now that I've done it, it doesn't seem sooooooo scary anymore.