Both are interesting ways to address the storage problem, but I really like the second one, building the dust collection into the top of the work table. I found another option, a portable hood that clamps onto the workbench while you're sanding - still needs to be stored, but much smaller.
As an aside, I found that hooking a shop vac up to my ROS gave much better dust collection than the little canister that came with it, there seems to be little or no dust thrown out by the sander now.
As an aside, I found that hooking a shop vac up to my ROS gave much better dust collection than the little canister that came with it, there seems to be little or no dust thrown out by the sander now.