ATHENS, Greece (CBS) -- Greeks go to the polls this weekend in an election that could affect economies around the world, including the U.S. Depending on which party wins analysts say Greece could become the first country to stop using the Euro currency.

The final campaign rallies are underway in Greece for what may be a make or break vote for the country. Analysts say the future of the Euro currency will be decided at the ballot box.

Greeks will choose between a party leader who supports the bailout deal -- and another who opposes it and deep budget cuts that come with it.

Alexis Tsipras represents Greece's radical leftist party and promises to rip up the conditions of the country's international bailout agreement. He's won a huge following among the young and unemployed.

New Democracy Party leader Antonis Samaras says the only way to prevent economic collapse is to stay in the euro. He says, "We cannot play poker or dice with Greece - he says - we must choose the path of responsibility."

Britain is taking steps to protect itself from the turmoil in Europe. While it doesn't use the Euro, it has strong trading ties to its neighbors and could have a lot to lose.

The Bank of England is pumping in $200 billion into its banks, money it hopes will help businesses and families borrow more and boost its economy.

But Greece has been rescued twice and continues to rack up debt and no party in Sunday's election is offering up a solid solution to the growing financial crisis.

If Greece did leave the Euro, it would be the first country to ever abandon the currency. Analysts worry it could trigger a financial crisis across Europe that would eventually hit the U.S. too.