Did you read this sticky?
http://www.rugerforum.com/phpBB3/viewtopic.php?f=11&t=13543
Get a couple of manuals and read the articles in the front about reloading. Lyman #49 is a good one to get. Modern Reloading by Richard Lee is another good book It covers bullets and powders from many bullet and powder manufacturers and has good articles. Some data is online, like Hodgdon. Bullet and powder manufacturers publish manuals, too.
Gear: a press, dies, scale, powder measure, reloading block, calipers. You'll need a way to clean cases. Most folks use a vibratory tumbler. That needs media. Check out the kits of gear. Those will have most everything except dies (those are a set for each caliber) and a tumbler. Depending on the brand, it may have some of the case prep hand tools (like primer pocket cleaner, etc).
Use a notebook.
And, of course, you will need cases, primer, powder, and bullets. Get a 1000 or so cases each caliber. That lets you have several hundred ready to be loaded, several hundred dirty cases waiting for tumbling, and several hundred loaded for your next range trip.
There are scads of little tools that can make the task easier or more pleasant or more efficient. Wait on those until you load up a few thousand rounds.
Look at reloading as a way to shoot more for the same amount of money. I don't think anyone "saves" money by reloading. We do shoot a lot more by doing so.