Multiple calibers points to the Classic Turret.
Permanent setup points to progressive as does your experience with things mechanical.
IDPA screams progressive.
Long range accuracy suggests against progressive (easier to do individual careful cartridge crafting on a single stage). While the Classic Turret can serve exactly as a single stage, I lean towards trusting a single casting as providing better alignment. All turret presses are assemblies of some sort. The only assembly press I would trust for crafting long range ammunition to the most exacting standards is the Forster Co-Ax.
One timeline that suggests itself to me for your situation. (Permanent setup, young family, with attendant budget restrictions, your mechanical abilities and shooting needs)
Purchase now: Classic Turret, Dies, FIrst-class balance beam scale, and the usual other accessories.
If long-range rifle work presents with a higher priority than your entry into IDPA; As money allows, add accessories that allow critical measurement of your ammo for the long-range accuracy work. If those measurements show improvement is warranted, a single stage press. Forster Co-Ax or one of the better, beefier one-piece presses, Lee Classic Cast, Redding Big Boss, RCBS RockChucker, Hornady LNL Single Stage, etc.
If IDPA presents with a higher priority than 500 yard+ rifle work, then Hornady LNL, Lee Loadmaster (though the Lee Pro-1000 comes in at a very attractive price, so might deserve a look) or, the REALLY nice offerings from Dillon. The Dillon Square Deal is around $500 with dies is auto-indexing, compact and since it is a Dillon is excellent. The Dillon 550 can use your same dies (though you may want to go with Dillon dies anyway) and though it is manually advanced, is no slouch. The big dog is the 650. It will set you back the price of a beater car or a decent (production) 1911 pistol, but will not disappoint. The Hornady Progressive LnL competes directly with the 650 and the choice of one over the other is not over the quality of the press or its production, but usually a matter of preference over one or another of the peripherals (primer handling, for instance).
So, I see (by Valentine's day) the Classic Turret from Kempf's gun shop, an RCBS 510 scale, array of Lee dies for all your calibers a good set of calipers capable of reading 0.001" (if you don't already have a pair you can devote to your reloading toolbox), a logbook for recording what you have loaded and observing ammo performance, cloth cover to keep dust off of your press and an adjustable height stool and (for the scale) a shelf mounted separate from your workbench (to isolate vibration) in good light and near eye level.
In three months, you will have identified and added small tools you need in addition to the initial purchase.
In 6 months, you will be looking at catalogs of new presses. If you have played your cards right, by next Valentine's day your wife will present you with either another child
or the progressive press of your dreams
.
Lost Sheep