Here's a view of the completed finishing room.  It has a roll-up double garage door for easy access for large projects.  The drywall went up on the partition wall and then I painted the walls and ceiling. 

I bought two metal cabinets from the Habitat ReStore where I volunteer.  They're perfect for paints, stains, lacquers, varnishes and everything else involved in putting on the final finish on my projects.  They were badly rusted on the bottom so I ground them down and sprayed on rust-inhibiting primer and color-matching finish coat, then sat them on a section of vinyl runner. 

I piped in compressed air for blowing off dust and driving my spray gun - you can just see the orange ceiling-mounted reel on the left side.  Later I'll build a bench and a lazy susan to be able to rotate small projects.

You can see this room is completely separate from the main shop room to stop any dust contaminating the finish.  I will have to bring the projects around the side of the building but in the end I think it's worth the effort.