Shipping stuff to Vietnam from Thailand

Hi Guys
I will be moving to Vietnam shortly and was wondering if anyone has any experience with shipping stuff to Vietnam and import taxes that will be imposed when stuff arrives there.
Basically I want to ship my personal belongings which include a bicycle and power kite and buggy, and TV etc.
When i originally shipped the bike buggy and kite to Thailand, I paid a fair bit of duty on these even though none of them were new, so I am trying to avoid paying anything this time.
Can anyone recommend the best shipping options and companies??

We used this guy once in the last few months from Singapore to HCMC, the service was good and reasonable fees: ROYAL INTERNATIONAL MOVERS VN LTD.  I guess they can do from Thailand too.