Mr Arkadin wrote:That Argentinian barbie looks like heaven to me - I assume there's not much of a vegetarian option.

This goes always with red wine, salads and a special ingredient commonly used in Argentinean barbecues called “Chimichurri”, here you have the classical recipe:
Ingredients
6 cloves garlic, sliced
2 shallots, sliced
2 cups packed fresh flat-leaf parsley
1/4 cup fresh oregano leaves
1 heaping tablespoon kosher salt
1 teaspoon crushed red pepper flakes
1 cup extra-virgin olive oil
1/2 cup red wine vinegar
1/4 cup water
Directions
Pulse the garlic, shallots, parsley, oregano, salt, and red pepper in a food processor until roughly chopped. Add the oil, vinegar, and water and pulse to make a textured sauce. Transfer to a serving bowl.
Cook's Note: Make sure to pluck the oregano leaves off the stems--hard stems make the sauce a little too textured. Toss the herb stems onto the fire to flavor whatever you are grilling.
There are different kind of Chimichurri sauces. This is how they may look like, depending on their ingredients:
http://delicious-cooks.com/chimichurri-sauce.html