Depends on what equipment you buy. There are three basic types of presses - Single stage, Turret, and Progressive. Most people start with a Single or Turret. Many just stay there, but for producing lots of pistol ammo in a hurry, nothing can beat the production rate of the good progressive presses. Single stages are generally the least expensive, and progressives tend to be the most.
You need a press. You need dies for the caliber you're going to reload for - get .38/.357 dies, a set that will load both, not just .357, no matter how good a sale the set is on. Trust me. It's annoying to have a bunch of .38 cases, and only a .357 die set. You need a shell holder - some dies come with one, others don't. You need some way of measuring powder accurately. You need a scale. You need some means of priming the cases. You need cases, powder, bullets, and primers.
You also need a reloading manual. You need to read it several times.
Lee equipment is usually the cheapest, and you can usually get a single stage press, one set of dies, and some other stuff in a package deal for a pretty good price from them. Everything they make works. Some people don't like their stuff because of price, or design preferences, but what they make does work, usually quite well.
I have a very entry-level single stage Lee press. I also have a Redding T7. No comparison between the two, the Redding is much, much nicer, but it is also quite expensive. I haven't used a Lee turret, but I understand that they work well, too.
There are lots of other brands. Redding, RCBS, Lyman, Dillon - all make good stuff.
You should be able to get into a basic Lee equipment setup for about $150 or so. Any other brand will probably be more than that. The list price for my Redding, for example, is over $400 (I got it at an estate sale for a paltry amount).
I suggest that you set a budget, shop, ask opinions. Then, buy one and try it out.