Good Questions: Marble Slabs?

Hello AT,
I'm hoping to get some white marble cut to fit the top of a groovy walnut console with not-so-groovy stains on the top.

Does anybody know of a good place that will cut marble to order in NYC and doesn't cost an arm and a leg?

Many thanks! Beth

This is a new one for us. This is where we would make our first calls:

(Thanks, Beth!) MGR