Dont worry about the trimming set-up, you'll lose the brass before you need to trim it. Trimming is usually for rifle cases. Pistol case can be reloaded several times before trimming.
When you buy dies, get the lee carbide 4 die set. This includes the factory crimp die. This will remove the flair from belling the case prior to seating the bullet. Removing the flair ensures propper feeding, and helps hold the bullet in place.
This will be quite an experience for you. See if you can find someone to help you thru your first 100 or so cases.
Go to and register at
www.handloads.com you'll find a wealth of questions and answers there. Lots of knowledge there.
Get a good loading manual or two, and maybe a copy of "The ABCs of Reloading".
When in doubt, stop and find an answer.