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http://www.gamaliel.com/Above are links to two good reloading suppliers. They will have many of the most popular components for shotshell reloading. There are other online retailers who are also good. Shipping cuts into your savings but occationally you might find free shipping. Big shoots often attract component vendors who offer bulk purchases and save you not only shipping but also haz-mat fees. Local clubs may be another good resource for components.
Hulls are easy to accumulate at local clubs. Most shooters save the premium ones but you will find many of the "economy" type hulls free for the taking. Experiment with different brands, you will eventually settle on one readily available. Once this is established your MEC can be fine tuned and you can stock up on components.
I strongly recommend Lyman's Shotshell Reloading Manual 5th Ed. It gives detail explanations of the process. Shotshell reloading it quite different from metallic. This book give a solid foundation to the beginner.
Alliant and Hodgdon both host web sites with loading data. Together with the Lyman book you will find many safe recipies using a variety of components to find a safe loads that suits your needs.
Initially savings might seem minimal but as you settle on a few loads you like they can really add up. Your loader was free (nice gift!) so that's already factored out. Look for deals and buy in bulk. Often hand loads are better than factory as they are tailored to you specific likes/needs.
Good luck and be safe!
