I think the way forward is to vote LibDem, never been a big voter generally looking at what is best for me with no real allegiance, however the LibDem vote and a hung parliament may just be the thing that saves the country just now. Also voting for them is better than wasting your vote on some of the ‘comedy parties’ (monster raving looneys and BNP come to mind)
A parliament that is fighting for supporters is more likly to do what the people desire (not a guarantee).
Given the fragile nature of the economy both of the main parties in charge are dangerous.
Vote safety vote, vote hung parliament, vote LibDem.