Cook Pasta in large pot of boiling salted water until just tender but still firm to bite, stirring occasionally. Drain. Rinse pasta under cold water for 30 seconds. Transfer to large bowl and let cool.
Add sundried tomatoes, capers, artichokes, olives and red & yellow peppers. Mix the vinegar, Olive Oil, garlic & oregano together and add to bowl. Garnish with the Feta cheese. (Can be made 6 hours ahead.) Cover, chill. Bring to room temperature before serving.
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