I always spend foeervr researching flight/ferry prices and it always pays off, that extra hour spent in front of the computer screen can easily save a3100 or a3200!You mentioned round-trip tickets as an idea though and whilst it's true you can often find a return' ticket cheaper than a single (how does that work??) I was under the impression that if you didn't show for the return leg of the journey they'd charge your card the extra amount as though you'd paid for the expensive single all along. Or does it not work like that where you are? (I'm in the UK and most airlines/ferries here will do that)