I currently have a Black and Decker Mouse, which I hate with the fire of a thousand suns. My budget is very limited, but I've been cleaning out our garage to set up my shop, and I'm going to take all of the random unused hardware to the second hand tool shop and see if I can trade it for a sander. Their stock is eclectic enough that looking at particular models ahead of time won't really work, but what sorts of features should I be looking for? Obviously "not made by Black and Decker" is a big one, but what else? I'll mostly be using it to sand off the ridges left on resawn wood by the bandsaw.