What do you NEED to start reloading?
Any quality single stage press will get your foot in the reloading door. I learned to reload on the Green stuff, so am partial to RCBS if it's not Dillon. that said, I also have some Hornady and Lee dies. The Lee is a factory crimp .223 - the Hornady is 40 S&W.
A reloading book - Hornady, Sierra, Nosler, Speer/RCBS, Hodgdon. Get one that the newest of the first 2 and then pick up used versions of the others.
Goggles - I've never had primers go boom, but knew a guy who worked at the CCI works in Lewiston when I went to WSU... he had some interesting scars. (I don't wear them, but know I should.)
Grain scale. Preferably electronic, but a single beam RCBS (510/1010) can't be beat. Check ebay and gunbroker. I use a PACT electronic. There are several to choose from.
Powder measure. Again, my preference is green. Either RCBS or Redding. Or check this out -
Quick Measure - The Accurate Powder Measure This is what I used to load the 10MM's powder. And what I will be using for .223 when I get that bug.
Dies - a set for each caliber. If you're going to do straight wall pistol calibers - 9mm, 4o, 45, you will want a taper crimp die. Makes life much easier. For pistol calibers - carbide dies. Accept no other. For rifle cartridges, a god case lube, like Hornady one shot. Works good and doesn't dent case walls if you put on too much like the RCBS stuff will. Go with RCBS, Redding ($$), Hornady, Lee. I usually avoid Lee, but other people have had good luck with it. Lee does make some special dies that no one else makes - like the factory crimp dies. For auto loading rifle - .223, .308 it's a good investment. I've read about the Lee/EGW undersize die for 40. handy if you shoot Glocks or pick up brass that's been thru a glock. takes the glock bulge out so you don;t have issues with chambering the previously glockified brass. Remember to get the right shell holder(s). Some will work for more than 1 caliber. 30-06, 25-06, 270, 308, 243, 7mm-08, 22-250 = 1 shel holder.
Brass trimmer - If you shoot rifle stuff more that twice, you will want... need... to trim to length. Brass flows under pressure. Least resistance is thru extending the case mouth. Again, RCBS. Or Foster/Bonanza.
Loading blocks. MTM or RCBS. To hold your brass as you work thru a stage (depriming/resizing, adding powder, seating bullets).
ACRO bins - hand for holding your brass.
Brass polisher/tumbler. To clean that nasty ass brass. Crushed walnut - finest you can get so it doesn't clog flash holes. the big shell stuff is great for cleaning brass before resizing, but once you deprime, the fine is the only way to go. Otherwise you'll spend too much time knocking the crumbs out of the flash hole.
I've been reloading for 25+ years and have a pretty good collection of godies, but it seems there is always some new gadget. Starting out, stick with the basics. Pick up one of the major mfr's (Sierra or Hornady) reloading manual and give it a read before you buy anything else.
Feel free to pm with any questions.