Southwestern Pasta Salad (or spiral noondles)

We Really love this salad and another one found at this link is also wonderful http://nannykimsrecipes.blogspot.com/2009/07/i-found-this-veggie-filled-pasta-from.html )-but this southwestern one below is one of our favorites- great seasonings. This salad only takes 12 minutes to make and it tastes good warm or cold. This came from a magazine--I think it may have been light and tasty. It is yummy!!

1 package (1 pound) of macaroni--we used the tricolor spirals instead
1 pound cherry tomatoes, quartered
1 cup of frozen corn, thawed
1 medium green pepper, chopped
1 medium red onion, chopped
1 can (2-1/4 ounces) sliced ripe back olives, drained (I used more)
1/2 cup fresh lime juice (good even without this)
1/4 cup olive oil (I used less--about a tab. because we were eating it immediately)
1 tab red wine vinegar
1 tab chili powder
1 tab sugar
1 tsp salt
1 tsp garlic powder

Cook pasta according to package. Drain and rinse in cold water. In a large bowl, combine the pasta, tomatoes, corn, green pepper, red onion, and olives.

In jar with tight lid, combine the lime juice, oil, vinegar and seasonings. Shake well. Pour over pasta and toss to coat. Serve immediately or chill an hour. Yield: about 3 quarts.