RE: Tools for the model shop - bandsaw/jigsaw/scroll saw?
The first must have tool has to be a dremel.
I would go for the scroll saw first. It seems to be the most versatile. Dremel makes a scrolll saw that has a place on the side where you can attach a dremel extension. If you go that route you will have a scroll saw and a dremel tool.
Next on the list of tools would have to be a drill press. They come in handy for lots of stuff.