I sat down and thought about the absolute minimum gear for reloading 9mm and this is what I came up with:
$31.99 Lee Reloader Press Kit
$25.99 Lee 3-die Carbide set
$0.00 Shell Holder (Comes with Lee Dies)
$0.00 Sizing Lubricant (Not needed with Carbide dies)
$11.69 Lee Auto Prime
$2.99 Lee #19 Shell Holder for Auto Prime
$2.79 Lee Chamfer and Deburring Tool
$21.99 Lee Safety Scale (I don't recommend this scale)
$0.00 Rag or paper towels (I assume you have one at home)
$21.99 Frankford Arsenal Electronic Caliper
$0.00 Loading Manual comes with Lee Reloader press kit
$2.79 Lee Powder Funnel
$122.22 Total Cost
I used Midway as a source for the prices. These items will give you a perfectly adequate, though minimal, loading outfit. You will notice I don't recommend the Lee Scale. I must say this is simply because I didn't like its looks and I've never owned one myself. Others who have used it say it is perfectly adequate. My preference would be the Dillon Eliminator scale at $54.95 instead of the Lee Scale.
This is just the equipment needed for reloading, which will last almost forever, and obviously does not include supplies like primers, powder, bullets, and brass.
Everything on the list can be upgraded at additional cost, and there are other items which make loading easier and faster that you may wish to add. Those items include: a powder trickler, a powder measure (a powder measure is the one item that will do the most to speed your reloading), case trimmers, bullet pullers, progressive presses, etc. Reloading is a great pastime for people who like gear, because there is so much reloading gear available. It is always a good idea to own several reloading manuals. The Lyman is one of the best. I like the Sierra manual for rifle loading data. The new Lyman cast bullet handbook is due to be released soon. It will be a great addition to your reloading library if you intend to shoot cast bullets, or if you wish to begin casting bullets for yourself.