Bill Hindle, president of HindlePower in Easton, is leading a
company that has found success in a specialized market. The
company, a supplier of single-cell chargers, power consoles and
distribution stations, is busy and adding jobs even in the
current economy. (Douglas Kilpatrick/Special to The Morning
Call)  Like monuments to a distant age, the foundries and smoke
stacks of the Lehigh Valley remain, towering over rolling hills
and spacious farmlands.  While some continue as job sites for
the Valley's work force, others await the wrecking ball, long
since abandoned.  The business models they represent are equally
archaic, swept aside by the new dynamic of manufacturing: In
order to survive, manufacturing companies must operate with
leaner staffs and strive to become leaders in specialized niche
markets.   "They either have to modify and meet the needs of the
marketplace or they're roadkill," said Bob Wendt, regional
coordinator for the Lehigh Valley Economic Development
Corporation.  The process began in the