I traded a couple peripherals I wasn't using any more plus $70 (tax included) for a Delta AP400 roll around dust collector. It looks to be is really good shape.
Someone must have used it for some drywall work, as there's sheetrock dust around the collars and the bag, so I'm going to take it apart for a good cleaning and probably wash the bags and filters.
I know this is a low end model and not powerful enough for long, multiple runs, so I'll probably set it up close to the CMS and RAS and roll it out to the big power tools when I use them. I'm just excited to have something better than the shop vac for dust collection.