KEY POINTS:
8.26pm: The leaders sum up at the end of the final debate of the campaign.
Clark: We can get through the financial crisis with strong, proven leadership. She says she is committed to a strong and prosperous New Zealand and this is not the time to jump into
the unknown.
Key: Labour will be looking back, a vote for National is about going forward with a better economy, safer streets. He says it is time for change.
8.21pm: A young viewer asks if Clark and Key are friends. Key says a little boy once said he was Clark's boyfriend. He assures viewers this is not a case and says he won't be sending Clark a Christmas card but they get on fine outside political debates.
Key rules out Clark in cabinet. Clark though says there could be a role for Key.
8.16pm: A reader asks if they are prepared to make unpopular decisions on things like climate change. Clark says it is serious and we have to play our part and lists some global warming policies. She is pushed on the limits on showers issue from earlier in the campaign. She doesn't answer and mentions composting.
Key says he "cares a lot about the environment" but he is not prepared to sacrifice kiwis' jobs for climate change. Rich countries look after the environment, he says. Climate change will be on the page, but the economy will be at the top of the page, he says.
8.03pm: A reader asks for the leaders' views on Israel. Key says he supports peace in the Middle East and doing everything possible to bring Israel and Palestine together. Clark says Israel is a good friend of New Zealand and she wants a two state solution for Israel and Palestine.
7.57pm: A viewer asks about policies on abortion. Key says he has no plan to change the law. Clark says it is a serious decision to be taken by a woman in consultation with her doctor.
Sainsbury asks if she believes in God. She says she doesn't, she is an agnostic. It isn't something she spends much time agonising over, though Christianity's tenets govern how she runs her life.
Key says he is not deeply religious either. He does not believe in an afterlife, but he respects other people's faith.
7.50pm: The leaders are asked if they have ever broken the law. Key says he drove on Carless Days in the 1970s. Clark admits she has had "a couple of speeding tickets".
7.47pm: Key says a boot camp is about "sergeant-major, that kind of yelling and shouting". He says the programme would last a year and would involve rehabilitation for "youngsters going off the rails". Clark says we need a range of options for young people in trouble who can cause society many problems, but she wants more people to stay in education longer.
She does not favour compulsory military training and says the armed services need people who want to be there. Key agrees.
7.40pm: Clark says she would be happy if the government did not receive any tax money from tobacco because nobody was buying cigarettes. She would like to ban displays in dairies. Key says that would be difficult because of practicalities. (Clark says she has tried a cigarette as a teenager, Key says he has never had a puff.)
7.35pm: Key says he has no problem buying in private healthcare for the public health system where required.
7.25pm: A viewer's video asks why animals in NZ are covered by climate policies when farming is so important to the economy. Clark says Labour kept its word to farmers that the moves would be introduced gradually. Key says we are unique as a country in that half our emissions come from agriculture, pledges to work on R&D to find solutions. he says farmers are being "crucified".
7.22pm: Key says he will talk to the Maori Party, Act or United Future as required after the election. He supports benefits for those who need it "on a case by case basis". Clark says there is no "open cheque book" and she is focussed on jobs. She has held off announcing free doctors' trips and other plans because of the economic situation, she says.
7.17pm: An Aucklander asks about the future of rail in NZ. Clark: we're proud of having it back in public ownership, now we want to modernise the system to get traffic off the roads. Key: We support rail, though it doesn't always make sense to use it for short distances.
7.15pm: Sainsbury says the two leaders look more subdued than at the start of the campaign and asks if they are tired. They both laugh and deny it.
7.12pm: Key says NZ is in danger of becoming a "giant educational facility for Australia". The answer lies in growing the kiwi economy, he says.
7.11pm: Clark says moral leadership will be important and says she is opposed to privatisation, which she says National wants. Key gets no chance to respond.
7.05pm: A viewer from Wellington asks an interesting question - what do they like of each other's policies. Clark says she sees some similarities in National's policies and welcomes the agreement they had on the banking system. Key backs a continuing foreign policy which is independent of other countries.
7.00pm: Mark Sainsbury opens the final leaders' debate by asking about the impact of Barack Obama's victory in the US today. John Key says he hopes to get a free trade deal between New Zealand and the US. Helen Clark welcomes the opportunity for change in Iraq.
