It matters how many you intend to load in a batch. My recommendation will be different for the person who might load 300 or 400 rounds a year versus 1000 a month.
At entry level,its good to keep things deliberate till your levels of competence develop. Basic is good.
Over time,you will change and develop your own adaptations to circumstances and what works for you.
In other words,buy your "ultimate" press when you can make your own recommendation. Don't spend $150 to $400 or more on a press yet.
Even if you later get a Dillon 1050 or a Redding turret,you will always have use for an auxillary basic press.
Lee offers economical,basic ,functional equiptment.
The suggestion for a Lee hand press is good. I still use one,and I have several presses.
The Lee Challenger bench mounted press can be had for very small investment.You can load ammo just fine with it.
Later,if you buy a $1000 production press,you can still use your Lee Challenger for small batch and load development. Sometimes the setup work for a production press is overkill for 40 rounds.
If you later buy a high end single stage ,two presses on the bench,set up with a 2 die set,can be pretty efficient.
I'd hold off on spending a bunch on the ultimate press.
Instead,I'd look for a really good powder scale.Mine is an Ohaus 1010. I've had it for decades.Either RCBS or Redding sell it by another name.
A good calipers is a necessary investment.I suggest E-bay.
Calipers are a whole 'nuther thread.My career was in the machine shop. As a 65 yr old Goober,my preferred loading bench calipers are used,satin chrome quality Vernier scale calipers. Etalon is the sweet set,but Mitutoyo,Fowler,SPI,etc are fine. You have to learn the skill to read the scale. They are a bit slower to read.However,no batteries,no little gears,racks,etc.
Stone cold dependable and rugged. Cheap,too. Generally in the $30 range on e-bay .Look for something that looks quality that came from Boeing or similar.
It will work when the digitals are dead and the dials have jumped the rack.
A good powder measure,Redding,Hornady,RCBS,etc will really help.
And at least two 50 round loading blocks.
50 round molded cartridge boxes. A record notebook. At least a loading manual for your favorite bullet company and your favorite powder company.
The loading manuals are a reference for the reloading process. Your how-too. Most all the answers are there.
You need a chamfer/deburr hand tool to prep brass.
Later,as you gain knowledge,you can get a few more advanced items.
But ALL of the gear I described works with a $29 Lee Hand Press,a $300+Redding turret,or a Dillon 1050.
Measuring you powder,cases,chamfering,etc is where your ammo safety andquality is,and your knowledge and experience.
Which press you use matters little. Invest in the process,not the press.
Having said all that,you can't go wrong with the RCBS Rockchucker press outfit recommended above.
As long as a single stage outfit meets your needs,its a lifetime press.
And it would sit just fine next to any Dillon progressive 5 years from now.