Three types
Jay, there are three main types of presses:
Single Stage: does one operation on one cartridge. It takes several steps to complete each round. With this you change the dies between operations I use an RCBS Rockchucker. There are many very good brands of single stage presses. Others are Hornady and Redding. Lee makes less expensive presses that are great value if your requirements aren't too demanding.
Turret Press: Similar to a single stage except all of the dies are arranged on a plate, so to switch operations, you just turn the plate to line up the next die.
Progressive Press: Every time you pull the handle, a completed round comes out. The same manufacturers make progressive presses but people here rave about Dillon as being THE progressive machine. They have several models with increasing degrees of sophistication all the way to the point that they are powered and highly automatic.
So you will understand, several operations need to be done on a case to reload it. Knock out the old primer, resize the case, reprime and Gcharge powder, press in bullet and crimp. These steps are done with sets of dies (about 2 to 4). I'm sure he can decided what dies he wants later, just so you know this to help make your buying choice.
Given different types, preferences and complexities you MIGHT just give him a card that says, "Redeem for One Loading press" and let him do the deciding and footwork.
PS: You are a gun owners dream mate. <BIG HUG>