Thanks chipp71970. I'd be interested to hear how it goes when you do test them out. If I take the plunge in the meantime, I'll post my experiences on here too.
Dan, thanks for the link. It certainly looks like a useful setup for a table. I have a bulkier cutting table right now, consisting of a heavy wooden framework top with plastic trestles as legs/supports. It works well, giving me a solid(-ish) work surface (entirely due to the weight of the wood top) at a comfortable height, I can attach clamps to the table due to it being off the ground (which is perhaps the main thing that makes it so versatile for me), and the plastic trestles are very forgiving for the rough ground I use it on (if one leg is sitting on a high point on the ground, a kick of the leg will "adjust" it to a more stable position
).
The big failing of my current setup though is that any wood that I lay on top must be lowered onto it - as the legs/trestles are not actually attached to the top the whole thing can move if shoved. Lowering the wood is fine when working with smaller pieces of wood, or when I have someone else to help me lift full sheets, but when working with a full sheet on my own it gets challenging to say the least.
The convenience of using a piece of foam on the ground is appealing, and would cover my needs some of the times when cutting sheet goods, but the lack of ability to clamp the wood to the foam would prevent me from rigging it up to cut smaller pieces of wood or for repeat cuts (for this I have to get very creative with plenty of clamps, support pieces of wood, etc., but it works, just about), and I also rely on the clamping ability when using the table as a support for routing too.