One time I went to Ashley's Furniture with my aunt and I remember there being a whole section for odd pieces of furniture or things that were marked down (significantly) because there was something wrong with them (like scratched surfaces, torn upholstry, etc.) Who knows? You might find something suitable for a cutting surface if you look into the "misfit furniture section" of a furniture store.
If there are any furniture places going out of business or doing liquidation there are bound to be some major discounts on tables that could be your new cutting surface.
Keep in mind that it doesn't have to be the prettiest looking piece of furniture if you're gonna use it for cutting. My dad's girlfriend bought the most hideous looking table I've ever seen in my life, but she says it makes a great cutting surface.