To most conservative business groups, the mainstream media are a brick wall. And the brick is always blue, never red. Always on the left, never the right. Ask John R. Smith, a financier whose political action committee, BizPac, serves the business community of Palm Beach County. "For years we tried to get the Palm Beach Post to tell our people's story, represent some of the issues important to business people," he said. "Would they? Heck, no. These guys have a story written -- at least mentally -- before they hear the first word we have to say