I am working on a very large bookshelf project (walnut ply, solid walnut face frame) and am thinking about getting a new sander. All the face frame parts will be sanded to 220 with my drum sander so I am only looking to do final sanding and finish leveling. I'm planning on using Waterlox (wipe-on), maybe after starting with a coat of orange shellac. -So- I need a finish sander for the assembled piece up through 320 grit and something to knock down the nibs / level the finish. Is the RS2 what I'm looking for or would a Rotex 150 be a better option? Would anyone recommend using the buffing capability of the Rotex on this project? Keep in mind that I'm looking for fine finish sanding and have a lot to do (14ft of 8ft bookshelves). How is the dust collection on the RS2 (vs the Rotex units)? Thanks!