Mike,
I understand! I went with what I did because of the cost of the other solutions. If you look at CL and EBay you might be able to find a decent DC or filter for a great price. That's what I did which is why I am selling that 1 micron filter bag... I found a great deal on the canister filter. Bill's site made me more conscious of the issue surrounding micro dust particles and that I needed to be way more careful. So I purchased the DC I could afford and the upgraded filter. Then I setup my shop so I can blow any of the micro particles outside. When possible I will push the whole unit outside and run some extra tubing to my tools. That is the best I can do for the moment. So far that has done wonders to keeping my garage / shop free of the visible particles. I have to assume that I am also reducing the microparticles as well.
Take care.
Mark