Well, stopped by the parts store today and picked up a new pressure switch. After I got home and let the engine cool, went ahead and disconnected the currently installed sensor to see what that would do. Started the car and all of the gauges went through their normal start-up (moved through to max and then returned to min, and then to current reading). Oil pressure remained at min, and 'check gauges' light came on. Went ahead and replaced the switch (again), not to much spillage, and turned the motor over again. SUCCESS!!! Looks like the initial replacement switch was defective. Works now!
Thank to everyone for all of the help!
BTW Dan, KILLER hood! Loved the write-up and pics!