my sister migrated to NZ in 2000 and they decided to whittle down and share a container, on asking her advice about what to take she said EVERYTHING, she really regretted havung to buy a new sofa, table and chairs etc when it would have been more cost affected to have a full container and take all her belongings.
you'd be surprised how much you've got as we were when we had a shipping survey done last week. plus if you share a container, it takes longer to get to au, and both parties need to be present to open it. we were quoted 35 days for shipping but shared was 8-9 weeks.
don't forget you're gonna start erning $'s. they don't go as far as £'s (advice from my sis)
good luck all