In Reply to: postage posted by gertie on Monday, 18. May 2009 at 10:14 Bali Time:
They cost about the same and take about the same time.
Only difference is with DHL you use their box, and the larget "jumbo box" which can hold about 20kg is not very big.
With EMS at the post office you provide your own box, so may be a better option if what you plan on sending back is bulky.