I have a single stage RCBS RockChucker Press (w/powder measure and case trimmer), which I got as a wedding/housewarming gift from my FIL 30 years ago, but cost about $300 or so today. Dies you can get anywhere (Academy, Bass Pro, Cabelas, Midway USA) and run about $30 per set. There is a local gun shop I frequent for bullets, powder, primers and shot--I like the fellas there and don't mind paying a couple bucks more there since even their prices will beat online guys + shipping. Next to my Rockchucker my son has his MEC Grabber progressive in 12 ga (was ~$450) and a Lee Load-All II in 20ga ($60). For infrequent shotgun, the Lee Load-All is fine. For volume, you definitely want a progressive. I can do: .300Win Mag, .30-06, .223 in rifle, and .38, .357, and 9mm in pistol. I thought about "upgrading" to a progressive press, but when you factor in changing calibers as often as I do, it's actually simpler (but a little slower) to use the single stage--just plan your loading in stages. I collect all brass and deprime with a universal deprimer die, then tumble/polish as needed, and separate into calibers. Then I try to prime magazine batches +2 of each caliber (i.e. 4 mags 223 (122), 4 mags 9mm (62), etc) all at once before switching calibers and dies. Once the brass is cleaned and primed, the charging and bullet seating is a simple affair--put on some tunes and crank away (sts). Since I'm single stage, I have to seat/check each bullet seat and crimp each time I set up--that's the reason for the extra (+2) rounds per batch.
I tend to give a lot of my handloads away (Birthdays, Christmas)--ammo makes a great gift!