The more research you can do in advance the better off you'll be. YouTube has some great videos, too.
I was in your shoes a few short months ago. Lots of questions and research later, I'm quite happy with my setup (Lee Classic Turret Press).
On mine, I removed the indexing rod (I want to run it more like a single stage). The press is solid and smooth, and it has consistently produced flawless ammo with shooting results that I'm quite happy with. I've purchased a number of spare 4-hole quick-change turrets which are amazingly convenient. Changing calibers is merely a matter of a turret and shellholder swap.