Some thoughts, if you need to actually light stuff at those tiny apertures:
Here in the US, there's a lot of older generation speedotron black line stuff available, 70's era - but they're workhorses, I have several packs from the 70's and use 'em all the time. The 2401A (2400 watt second) pack was pretty ubiquitous and shows up on eBay/etc often. Expect to pay a couple hundred bucks, but that and two heads = a lot of light. The 1201 A is also a great basic pack with some oomph.
There's lots of pack & head gear on the used market, but not much at the power levels Speedotron offered, that will still be running like new after decades.
For hot lights, you can still buy professional tungsten lights with a lot of power. The Source Four 575 watt par (copied by Altman, and MTB makes one for the disco market called the flexipar, basically the same fixture for about 100 bucks) is a 575 watt light with 4 different lenses (wide, spot, etc). That's one insanely efficient light fixture; you'd probably want to bounce it off a ceiling or white sheet for soft light. It's got pretty amazing output.
Used theatrical open-faced lights (the rectangular style, sometimes called "nook lights" or "cyc lights") use the same style bulbs as work lights from the hardware store, but can be lamped with 100, 200, 350, 500 and 650 or 750 bulbs. They're basically "work lights" but have real barn doors and yokes. They usually have a ceiling clamp, which you replace with a stand adapter (called a TVMP). A 650 or 750 puts out some lumens. Again, you'd use these for bounce or through diffuse fabric.
Used theatrical and movie fresnels (there's all kinds of new fresnels out there, I'm talking on-the-cheap) are pretty great when you actually need to point light directly at things or people. Range (in smaller use sizes) from 2" or so to 8" lenses, from 100 watts to 1000. There are dozens of current and discontinued brands out there.
You can get a lot of control over tungsten lights with dimmers - (in the US) regular household dimmers max out at about 600 watts and they'll burn out with big lights. Router speed control boxes ($25 at Harbor Freight) make great dimmers for up to 1K or so.
There's all kinds of pro stuff out there, but I'm guessing when you're ready to spend $2000 and up on a light you'll find it... I still have quite a pile of used theatrical lights I use for paying work - started out with 'em, too good to replace!
