I have a Gristmill table as well (I also have a custom designed cutting table by Gristmill). My quilting table is the same design as the one shown by Quilter in MN, but in oak with different handles. I have a clear plexiglass insert.
This design gives me room to put my basic supplies to the right of the machine, close at hand, and plenty of room to spread out my fabric to the left and behind the machine.