Voters are preparing to head to the polls in Turkish-held northern Cyprus, for an election in which Mehmet Ali Talat, the incumbent president is pushing for reunification with rival Greek Cypriots.br br Sunday's poll could have a profound effect on the future of the island, as the incumbent's main rival, Dervis Eroglu, seeks to bolster a breakaway state.br br Al Jazeera's Laurence Lee reports from Nicosia in Northern Cyprus.