Some ideas from Brian Enos who had great ideas on what you would need for your Dillon press.
You need:
reloading dies for your choice of caliber
Carbide for pistol calibers lube not needed but it make loading easier.
Standard or Carbide if available for your rifle caliber. Must use lube for all rifle calibers.
powder scale
bullet puller
case tumbler/vibrator to clean your fired brass
cleaning media for the case cleaner
case lube
Primer tray to flip primers
good reloading manuals Hornady, Speer, Lyman, Sierra or bullet maker specific loading manuals.
bullets for reloading
primers
powder
This is in the FAQ from Brian Enos old store site. Prices are now somewhat higher
Although not technically a "drawback," the case feeder for the 650 is optional, meaning add another 180 bucks to the base price of the machine. (Don’t even think of buying a 650 without the casefeeder.)
650 Height Dimensions (w/Casefeeder): With Casefeeder (and no Strong Mount): 38.5"
With Casefeeder and 650 Only Strong Mount: 45"
(650 Only Strong Mount raises machine 6.5")
RFP: (Recommended First Purchase) $566.95 – Base Price
$63.95 – Dies (sold separately)
$218.95 – Casefeeder
$42.95 – Roller Handle, Aluminum
$44.95 – Strong Mount, (650 only)
$40.95 – Bullet Tray
$978.70 – RFP Total
Additional options available:
$68.95 – Powder Check System
$41.95 – Low Powder Sensor (redundant with Powder Check System)
NCC: (Nice Caliber Conversion) $77.95 – Caliber Conversion Kit
$63.95 – Dies
$107.95 – Deluxe Quick-Change Kit (Includes Toolhead, Powder Measure, Powder Die, and Toolhead Stand.)
$249.85 – NCC Total