Assuming you'r going to load for bottleneck cases (not straight-wall cases), and aside from your cartridge specific loading dies, powder, primer, and bullets you'll need:

A trimmer - a buddy just bought a trimmer (Lee I think) for under $15. It's a 2 piece thing, caliber specific, and can be powered by a drill. Seemed pretty handy for doing small quantities.

A scale to weigh powder charges. For small quantitites you can weigh all your charges. A powder measure can come later.

A press. I recommend a beginner's model, single stage, with a priming feature. If you get a press without a priming feature, you'll need to plan for another way to prime cases.

A way to lube cases.

Calipers. Really can't load rifle cases without a decent set of calipers.

A current or at least recent reloading manual. Be sure to read over the procedures for metallic cases a few times before loading cases.

There are plenty of other tools that can be used, but these are the minimium necessary. If you can find a kit that comes close to this, you can often get a better deal than buying separate items. Have fun.