how can we fix a crack and chip in a marble table top?

We bought a gorgeous 5' x 3' marble queen anne coffee table for 100.00! We didn't see the crack or chip until we got it home. Is there a way to fix it? The crack is about 3 inches long and you can feel it when you run your hand over it. Also, right below the crack is a chip on the edge about the size of a dime. It isn't easy to notice (obviously!) but we would like to have it fixed. My husband is a DIY man, but I am worried about this one. We have no idea what it is worth, but we love it!
Thank You!

Sandy Sutherland
November 2009