@kristio, I hope for the best for you, too, but in any case, please keep us posted!! Your package won't go to Ezeiza unless you accidentally sent it by DHL, UPS or Fedex. Always better to use the USPS because at least those packages DON'T get stuck at Ezeiza from what I have read on this forum and my own experience. Retiro does not charge you for the first 5 days.
I have an Argentine friend who orders small packages all the time from dealextreme, including smartphones and tablets, and all but one have come right to his door free of duty. And that one time, he was only charged once 30 pesos for a tablet. Supposedly, as long as it under 1 kilo and fairly smallish, it passes. They write things like, "Gift" on the package in English but surely aduanas knows the company by now. Of course, I don't much fancy the idea of buying most of the products for their quality unless I want an Extreme Deal.
Still, I think it is curious that he gets so many packages without being charged since they are indeed electronics, and I wonder if the products pass because of the low quality or because of my other theory...aduanas is more likely to stop or check packages destined to people with non-castellano sounding names. ...Or aduanas picks out people who look genuinely lost or struggle to communicate in Retiro because of the language barrier (bring an Argentine friend in any case to help you get your package assuming you have to pick it up!).