Alternative to sherry for cooking?

Hello all,

I'm trying to make a simple chicken, broccoli, and cashew dish for a dinner tonight (background: my wife and I just got married recently and we're having our first house guest -her best friend and one of her bridesmaids over this evening) The recipe calls for 1/3 cup dry sherry and I'm trying to figure out an alternative without having to make a run to a liquor store. I've got a few bottles of $2-chuck on hand in various varietals (shiraz, cab sauv, merlot, chardonnay) and was considering substituting one of those. Any comments or suggestions?

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Recipe:
1 Tbsp cornstarch
1/3 C dry sherry
1/3 C soy sauce
1/2 C chicken broth
1 tsp sesame oil
3 Tbsp sunflower or peanut oil
2 large boneless skinless chicken breast in strips
1/3 C unsalted cashew nuts
1/2 C broccoli flowerets
7 oz bamboo shoots drained and sliced
6 scallions sliced diagonally
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1. blend cornstarch sherry, soy sauce, and broth and set aside
2. heat oils and stirfry chicken til golden and the cashew nuts are lightly browned
3. add broccoli and bamboo shoots and scallions until broccoli is lightly cooked (3-4 minutes)
4. give the cornstarch mixture a stir then pour it into pan and stir over medium heat until sauce boils. allow the mixture to boil for a minute or so stirring all the time, so that all the ingredients are coated in a lightly thickened sauce.
5. Served while hot!