Need more specifics.
Do you have a lot of free time?
Are these for plinking or precision target shooting?
How much room do you have on your bench?
How much loot are you willing to part with?
For starters, I would recommend a single stage setup. But you could always just buy a progressive and do each station one at a time (like me) until you get the hang of it.
"Ray guns don't vaporize Zorbonians, Zorbonians vaporize Zorbonians" The Far Side