That's one question, but the main question I had was taking cuttings. I've never done this for any plant. How long, in general, might it take for a cutting to go from just cut and planted to looking like the plant you'd buy in the spring from a nursery? I wanted to try it for these guys, but had no idea when I should do it. Could I take cuttings in the fall and overwinter them indoors and end up with a big plant in the spring? Would a south facing window be best for them all winter, or a plant light in the basement?

I haven't taken cuttings, but I do successfully do overwinter geraniums. In the fall before a hard frost hits (a little frost is okay, a heavy frost and they're toast), I dig them up, shake off what dirt I can, and throw them in paper bags (mine are large plants so I use the big paper lawn bags). Then I close the top of the bag and put against the coldest wall in the crawl space. Approximately beginning of March, I take them out, trim them back severely (usually see some green growth starting by now), pot them up and place under grow lights. They get going pretty quickly. When the outside temps warm up during the day (around 50s), I take them out during the day, back in at night - the sunshine really gets them going and they get full and lush, indoors they just don't get that nice looking. Then of course I harden off thoroughly when it's close to planting-out time.

I've got some B-I-G plants now, they just get bigger and better every year!!

So, I would just let them go dormant and store them (mostly because I'm terrible with keeping things alive in the house, plus I don't want to be bothered tending plants over the winter).