Well, some might suggest getting a progressive press for reloading pistol rounds, and while they're definitely quicker, I'll take quality over quantity all day long when it pertains to ammunition. I have a single stage RCBS Rockchucker that I use primarily for my rifles but I also use it for my .45 ACP as well.

I bought this press as a kit. It came with pretty much everything you should need to start reloading, except stuff like dies, primer pocket cleaner, etc.... I'd check e-bay for presses. They seem to have a nice selection of them most of the time.

As far as reloading data goes, I would get the latest, most up-to-date manual that you can find. It'll have most of the newer powders in it and that should be helpful. I'm not sure what type of bullets you'll be shooting for your .45 but I shoot lead cast bullets that I get from http://www.keadbullets.comas they're affordable and of good quality. Reloading pistol ammo isn't very hard at all and it'll definitely allow you to fine tune your ammo so you can get the most out of it when it comes to accuracy.