I would skip the continuous lighting, and go to all flash, just as a way to unify all the accessories. I too use Speedotron flash equipment, which is an old and established made in USA brand. It is very reliable, and has plenty of accessories available for it, and has a good, simple accessory mounting system called Speedotron Universal Mount, for things like reflectors, beauty dishes, and speed rings for softboxes. They have a low-cost Brown Line and a higher priced Black Line. For smaller, lower-powered flash units, monolights are popular these days, and there are several brands, like Bowens, Alien Bee, and Einstein, the last two both assembled in the US and sold direct-only by Paul C. Buff company. Monolights are fine for smaller lights of 300 or fewer Watt-seconds, but get kind of expensive when you need a LOT of flash power, like say, 800 or 1,000 or 1,200 or 1,600 Watt-seconds through one flash head...it's when you need to have a LOT of power coming through one head that the Speedotron Black line brand really becomes the power/price leader, since so,so many of its power packs have been 2,400 Watt-second models, but which have either four or six individual flash head outlets.