Theo-
Do you remember my thread on my "Jobsite Router Table Plus"?
http://www.routerforums.com/table-mounted-routing/36085-jobsite-router-table-plus.html
Remember that, that is DIY, can be made in different sizes... But is made modular to put in different tool "inserts." I have inserts made for a router, my jobsite saw, as a jointer using a power planer, a belt sander, ...a jigsaw, etc. Or with a blank insert to use it as a work table.
If you look at this old photo, you can see how some of the pieces interlock together:

I just woke up here an hour ago (time difference) and the table itself is out with 3/4" ply stacked on it... But latter today, I'll take some pic's for you of the jigsaw insert I made for it. It works great and it gave me some of the benifits of a bandsaw without having one at the time... and portable enough to take out on jobsites. What I like about it over just using a jibsaw, over a band saw or scrollsaw, is that you are not limited by throat size and like a scrollsaw, you can see what you are cutting, for details.
What I like about being modular... is saving space. You end up with the benefits of shop kind of many shop type mounted equipment without taking up the space of dedicate equipment for each. When tool inserts aren't being used, they are are shelves or hung on a wall, out of the way.
I guess I should take more pictures so you can see how things lock together and interchange. It's all spline and rabbet joints, so they either slide in or drop in. Locked together with pins and/or toggle clamps.