I built my dedicated "saw" bench from wood, nice heavy top made from 2x6 lumber, with another layer of MDF on that and a replaceable hardboard top. I added a couple of drawers to allow me to keep some items close at hand.
I like the wooden bench as it provides just a bit of cushion, and helps damp vibration when I'm running a saw on it.
The one behind this one (against the wall) is not so handy for working since it is only 16" or so deep, doesn't leave a lot of room to work. Beside, I like the "walk around" capability of the free standing bench.
Somewhere I have the plans for a similar bench in .PDF format if anyone is interested.
Mark