[Doodlebugger45]

Not sure what each kit has, but the basic Challenger press is good and very adequate to load on. Yeah, you'll need dies but you don't need a tumbler. It's kind of a luxury thing. As long as you have the press and dies, you'll need some kind of a scale. The kit will have a balance scale that will get the job done. You might need a trickler if you are loading rifle cartridges. Some way of loading primers is necessary, a hand primer loader is perfect. A powder dispenser is nice if you're loading lots of handgun ammo. If you're loading rifles at some point you will need a case trimmer.

No doubt the Lee kits will have all the hardware you need to get rolling though. Add dies, brass, primers, powder, and bullets and you're all set. A big thing though, if you don't already have at least one manual, then be sure to get one and read before you monkey around with the equipment. ABCs of Reloading is a good one. Speer, Hornady, Lyman are others. You should get one of those as well.