Bring 1 gallon of water and 2 tablespoons of salt to boil in a large soup kettle. Add pasta and, using package times as a guide, boil, stirring frequently and adding broccoli the last 1 minute, until just tender. Drain thoroughly (do not rinse) and dump onto a large, lipped cookie sheet. Set aside while preparing remaining salad ingredients. Place all salad ingredients (except soy-ginger dressing) in a large bowl or transfer to a gallon-size zipper bag. (Can be covered and refrigerated several hours at this point). When ready to serve, add dressing; toss to coat and serve.