me and my mate are planning a round the world trip starting in london stopping off at thailand, aussie, new zealand, west coast of america then working our own way to NY to fly back to London from NY. Can anybody tell us how much we will need, is it easy to pick up a second hand crappy car in america and for how much? where are the best places are to stop and any good hostels across america? and if anyone knows anything else that would be useful to us it would be very helpful. Thanks.