If you intend to be anywhere near serious (and by that I don't necessarily mean anal about accuracy, but producing decent, accurate rounds made for all your shooting) then firstly you need a bit of space. The minimum is around 4 feet of counter top securely fastened to the wall/floor. Pulling down that lever continuously can unsettle a wonky worktop. Then get a press. There's single presses, which are fine for small amounts of reloading. If you are doing batches of around 20 to maybe 50 or so, that'll be all you need. Or a more complicated progressive one. More complicated, but churns out a round with each pull, so long as you keep the supplies topped up. Then you need specific dies for each calibre you want to load for. Then you need something to sit primers. And indeed to extract spent primers. Then you need something to measure your powder. Oh and before long, you'll need something to resize your brass (length-wise, I mean). And then maybe some method of cleaning your brass. Of course I could go on, but there's the basics.
Which method you choose to employ to do all of those tasks is, for the uninitiated, a minefield. See all the different answers on here for proof of that.
You could do a lot worse than getting a Lee kit. It'll do most tasks needed although you will need to buy odd things anyway. You will also in time inevitably want to replace some items of the Lee kit to upgrade.
Or just get a bleedin' Lee Loader and away you go. There is something satisfying in bashing down that hammer incessantly.