Welcome Dan!
You've gotten a lot of great advice so far but I thought I toss in my nickels worth. As much as I like Jenny Doan, make sure you check out YouTube where you can find beginning to advanced tutorials of all kinds, the links below are a couple of my favorites. The Quilt Board has a wealth of information with all kinds of tutorials as well as pictures for inspiration and links and resources. As far as buying online, I think everyone has their favorites so you might have to try a few to decide...honestly I've not had a bad experience with any. That being said, if you have any local quilt shops be sure to check them out. Not just for fabric, but for advice, classes and inspiration. Even though shopping online is more convenient there is no replacing physically seeing/feeling the products. (I try to only buy online if it's something I can't get locally) Mostly take your time and have fun, and be sure to share your progress with your new friends on the QB!
https://www.youtube.com/user/SewVeryEasy
https://www.youtube.com/channel/UCT6...bYL3EuxDuutZDA