I don't have a press, I don't even know what tools are needed. I'm just looking to get into building. What does a press run? What else do I need?
It all depends on what type of build you are wanting to do. For a first build - some like to go with the premade (complete) receivers - i.e. vulcan, oow, or arsenal (global trades). With that and a parts kit then a drill press (though a handdrill would work a drillpress makes it easier), some drills, taps (8-32 and 10-32), and screws (10-32 and 8-32 - for a rivet like look button head screws - personally I use grade 8) one could build there own. Of course US compliance parts are a good thing to remember too
. I'm a firm believer in using headspace gauges - though some have built using a matching numbers kit and not headspaced with acceptable results. I also feel that a dremel is a handy tool to have around. Now if you are wanting to go all out, a press helps you to bend your own receiver from a flat, use rivet jigs to rivet the front and rear trunnions, and triggerguard, and to make an easier time of removing and reinstalling the barrel into the front trunnion (with a screw build removing the barrel isn't necessarily needed). Everything depends on what type of build you are wanting to do and also on how much you want to sink into tools. Harbor freight has a 12 ton press for around $99 on sale (around $124 regular) 12 ton press link
The last flyer I got from them showed it at $99.
For a drill press, I have one from harbor freight that cost around $40 drill press link
Hope this helps.