Lots of good Sauvignon Blancs from New Zealand in that range.

Nothing earth shattering but very quaffable at a wedding, especially if there is a fish on the menu.

At our wedding we had Fernlands SB as one of our whites. Alongside a solid French Chardonnay that we picked up in bulk from Costco.

For red there are some good Malbecs in that price range that will more than holdup to a beef entree.