I think the country will vote for 'Leave'. If that's the case, Cameron and the Tories will further tear one another apart, Scotland will lobby for a referendum of their own (and this time they'll vote to leave the UK) and then another GE will probably be called. Cameron will be remembered as the man who broke the Union and isolated us from the rest of the world. As a lefty, you could argue it's 'win-win'.
Most of you have made up your minds, and I respect your opinion so I won't bang on about this much as I'm not the biggest fan of the EU, but there are advantages to the EU. Yes, we pay money as part of our membership, but in return for that was get better tariffs, better security, more influence, and don't forget the EU does actually fund projects in Britain and passes several pieces of legislation that benefits us (consumer protection, health legislation, more effective security arrangements, paid holiday/maternity leave etc).
I'm under no illusion it needs reforming, but if we adopt the 'Norway business model', we'll end up paying just as much (if not more without those favourable tariffs) and minus the benefits that comes with membership. I have no confidence that the Tories will protect my interests, as they've spent the last several years plunging this country further into debt and most of their legislation has made working class people worse off than before.