TomW: Can someone that has shipped stuff with ship2u confirm that it is legit/reliable? I am looking at shipping a pair of skis from the States and the quoted price for ship2u is at least 50% cheaper than every other freight forwarder- it almost seems to good to be true.
As mentioned before, I've never used them myself. I did investigate them about 2 years ago when buying something, but ended up choosing Youshop IIRC because the item I was purchasing would have gotten the California sales tax, plus I was hoping it would be less than 500g. And Youshop was more generous with coupons at the time so even with ship2u being nominally cheaper, Youshop may have ended up about the same provided I didn't end up over the weight with Youshop but not ship2u.
IIRC when I investigated them, I couldn't find that much discussion of them but I also didn't find any major warnings. I thought I found someone who has something slightly odd, like they had a bit of trouble contacting ship2u or something but I can't find that again so may be remembering wrong. In any case I believe it was sorted.
Some people on geekzone have used them http://www.geekzone.co.nz/forums.asp?topicid=109104&page_no=59 , http://www.geekzone.co.nz/forums.asp?topicid=109104&page_no=57 , http://www.geekzone.co.nz/forums.asp?forumid=48&topicid=136655&page_no=2 . Also http://pressf1.pcworld.co.nz/showthread.php?134710-Using-NZ-Post-YouShop-to-buy-from-Sony-com-USA/page2 has someone who says they used them a few times.
You may want to look in to what their compensation policy is as there's nothing on their website. When I asked 2 years ago they said they would compensate up to $1500 for lost items. Or damaged items where it was their fault. But they could have changed since then. This may not be particularly likely but it's the sort of thing you don't think about until it's a problem. (For all their faults, at least YouShop is up front about compensation/insurance.)
And as with the other poster, I'd recheck your calculations unless your item is too large for Youshop, but okay for ship2u. Even with ship2u's more generous volumetric pricing and slightly cheaper prices, it shouldn't be 50% cheaper except for stuff like better consolidation or repacking which only experience can really tell you. (It's up to 20% cheaper on the volumetric plus a bit more on the shipping and may be for compensation.) E.g. for a 150x50x16 parcel (with weight below volumetric) it would be $240.50 on Youshop vs $196 on ship2u. A big difference, but far from 50%.