There are lots of variables in this issue, and you really need to ask someone who does this stuff for a living to get accurate and complete information. My understanding is that you can bring in your household goods without customs or import taxes under certain types of residency visas, but generally you have a nine-month window (from three months before you arrive until six months after) to do so. Also, until your visa becomes permanent, you may have to pay a small insurance premium as a guarantee that you don't sell your stuff.
I shipped my entire household down here, and did not pay a dime in customs or import taxes. I did pay USD $750.00 in port fees, but my shipping agent informed me at the very start of the process that this was going to happen, so I had it budgeted and it was not a surprise. And until my residency visa becomes permanent, I have to pay a small quarterly insurance premium to guarantee that I do not sell my household goods.My understanding (which could very well be inaccurate or incomplete) is that if your spouse is an Argentine national and has lived outside of Argentina for some period of time (I believe one year), then he or she can bring back household goods at no charge, either. You should talk to a shipping agent here to get a better picture. Two that seem to hvae good repuatations are Argenmove and Mercovan.