Considering your description of the pond, I'd go with a jerkbait or topwater, using very long cast in a fan patter. Also, any irregularities are key in ponds... And I mean ANY. Especially in small ponds or ponds without a lot of cove, something as small as a fist sized rock, or as seemingly insignificant as a tiny trickle entering the pond is a hot spot. As for specific lures, check out the Lucky Craft Sammy, Rebel Pop-R, and possibly a Lucky Craft Wake Tail or Brian's Prop Bee in the topwater department, and the Lucky Craft Pointer and Megabass Ito Vision 110.