After thinking about it decided not to overspend by buying the 64GB and the Amazon Extended Warranty. Instead I've bought the 32GB Black from John Lewis, which has a two year warranty (for everything other than accidental damage) and the Purple Amazon case. I should have both tomorrow. I've also splurged out £6.95 on two screen protectors, allbe it for the 2015 model, but they should be fine as according to the specs the screen size hasn't changed.
My last two Fires have come from John Lewis and I haven't had a problem yet, although saying that i'm bound to be setting myself up for misfortune