Anything to substitute for the Marsala wine in the chicken marsala recipe.?

I'm am 18 year old college student and can't purchase wine. Would like to make favorite recipe for my boyfriendAnything to substitute for the Marsala wine in the chicken marsala recipe.?
I'd suggest roasting red tomatos with a sprinkle of salt, pepper, red or white wine vinegar and some herbs. Just dress the tomatos with oil and vinegar and the spice and herbs and roast for at least a half an hour. Then mash or blend. This should be a tasty substitute for Marsala wine.Anything to substitute for the Marsala wine in the chicken marsala recipe.?
it may not be the same but you can buy it legally, there is an area in the grocery store where you can buy what is called ';cooking wine'; ( I thinks it is in the baking section). It isn't my favorite but beggers can't be choosers.
Go for grape juice, cook it down a little bit until it's slightly reduced, and add a touch of vinegar to tone down the sweetness.
Try it without useing wine. It wont be the same but can be done.