Check this out dave:
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is exactly the same bench that I made. I still have to assemble and attach the twin-screw end vise. If you click through to the third picture where you see the front of the bench, you can see somewhat what I'm talking about.
(this is the picture:
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see the holes in the front edge of the bench? And the white rag is sitting on something stuck in the leg? Those holes allow you to put bench dogs or stops where you can support the far end of long pieces which are held in the front vise. That's the same vise in that picture I have, by the way.
Anyway, you should see what is meant by a board jack or bench dog, etc. etc. Just something to rest the far end of the board on.
Another key feature of this bench that I really liked is that the front edge of the bench is flush with the front face of the legs, as well as the front edge being the fixed clamping surface for the vise. This means that the boards you clamp in place are supported against the bench along their whole length.
Mike