Seems like a right cake & arse party Geoff. We ship out to the states all the time as well as buying in and have no problems what so ever in fact just sent a cased IWS to the US with no issues.
The only problem I've had was quite recently when I purchased a vectronix LRF for $1500 but was presented with an extortionate customs charge. The parcel got rejected by me because the seller had marked its value at his end as $5000. Other than that no dramas.