Re: rcbs or lee ?
Lee makes some good stuff, some not so good.
The Lee Classic Cast (iron) press is great, better than the RCBS top of the line RCII single stage press (better spent primer handling, larger ram w/more bearing surface, fully adjustable handle for left/right hand, angle and length of throw. Oh yeah, LCC is cheaper too.
Lee makes a couple of types of dies that are unique: Collet type rifle neck sizers, and collet type factory crimp dies for rifle and bottleneck pistol cartridges. These are excellent designs, but often suffer from poor material choices, fit/finish, or both. I usually have to polish the collet & closer for acceptably smooth and consistent operation, but they work very well after that.
Lee dies have a unique lock ring design that some people like, but I cannot stand them.
Lee also makes a very good, simple case trimmer system, assuming you do not need adjustable trim length.
RCBS makes a great hand primer (Universal Hand Primer) & X-sizer die (FL sizer that needs no case trimming after initial trim).
I'd recommend you look at Forster reloading dies, and if your budget allows, the Forster Co-Ax single stage press. Also Wilson case trimmer.
Andy