The leaders of Greece\'s top three political parties on Sunday arrived for last-ditch talks with President Carolos Papoulias in a final bid to form an emergency coalition and avert new elections that could derail reforms. The leaders of conservative New Democracy, Socialist Pasok and Syriza, a radical leftist party that wants to reject Greece\'s EU-IMF loan deal, arrived for the talks shortly after 0900 GMT, television footage showed.