After 11 hours of work (including the trip to Home Depot to buy the lumber), this is what I've upgraded to. No more using the kids' toys in the garage as temporary sawhorses! I can use the table saw, planer, and router in place, and I'll be mounting a drill press on top too. The jointer will be stored underneath, since I don't use it that often and it's not that heavy.
A work bench for the miter chop saw. I do have the portable metal rail, but THIS has so much more room to put my stuff.......D. (printable version) http://ext.homedepot.com/community/blog/wp-content/wpuploads/DIY-Miter-Saw-Station-Free-Plans.pdf