Tim,
There is a wide variety of cutting tables for sheet goods. Simple setups made from 2 saw horses, 2x4s and a sheet of pink foam. Complex tables with fixtures to align the guide rails. Tilt-up tables to assist in lifting that heavy material. Some are easy to transport, some are easy to store. Lots of choices. So, maybe you could elaborate a little on just what you're after...
I would recommend using the simple method (saw horse, 2x4s and foam) to start with and go from there. Aside from portability and storage considerations, one of the biggest decisions for you may be how you will align your guide rails. My preference is to use accessories that lay on top of and reference off your material rather than incorporating those into the table and have to position large sheet material accordingly. But your choices may differ. So, again, fill us in on your design considerations so we can better advise.