It can add up quick, and might be tough to justify with the price drop ammo is going to take in the coming months. Industry is really hurting now that supply is starting to exceed demand again, doesn't help that every neck beard out there maxxed out their credit cards buying up all the .22 ammo
You should be able to get started for $400 or less with a decent kit and some components. The used market has dried up a bit, seems people see value in holding on to that sort of gear again. Don't fool yourself by thinking reloading is going to "save you money". I find it to be a very enjoyable hobby and have a lot of fun working up loads. It's even more enjoyable when you play with oddball stuff like 22 hornet where reliable ammo is scarce.
Before you get too serious, drop a few bucks on the ABCs of reloading:
http://www.amazon.com/ABCs-Reloading-De ... +reloadingIt's a good book to get a full run down of the process for pistol, rifle and shotgun.