My version:

http://www.bburke.com/wood/images/outfeed.jpg

Formica laminated to 1 1/2" of MDF and framed with ash to protect the
edges. Hardwood miter slots for longevity. Height is fine tunable
with machine bolts into T-nuts at the bottom of each leg.

The table is not attached to the saw in any way, as it weighs about
200 pounds without anything on the shelves.

Makes an excellent assembly area as well.

Barry