if the socialist party wins, the euro is doomed. hollande is not gonna put up with the kind of steps merkel is trying to implement. actually i doubt he'd even come close to implementing any austerity rules for his own country (which desperately needs them).
hollande will piss off merkel, merkel will retaliate by cutting agricultural subsidies. hollande will form a coalition to block germanic (ger+ned+fin+aus+slo+baltics) economic policies, the euro will cease to exist.
so yeah, in a nutshell, bring on hollande!