try to purchase your powder and primers in a local gun store for a couple of reaseons:
1) good advice on a specific load instead of digging it out of a reloading manual, BUT the advice of getting a copy of The ABC's of Reloading is good advice, just as a refresher.
2) You will save a lot not having to pay the shipping for powder and primers. The premium is costly. If you live in an area without a gun shop, or big box sporting goods store, you'll have to bite the bullet (sorry) and order.