Syria is awesome...although now may not be a good time to go (who knows if the Israel-Hezbollah war may widen to include Syria soon...). You could spend months there and still not see all the world class Ancient and Medieval ruins. However, if you're volunteering, I'm not sure how much time you'll have for sightseeing.
The people are incredibly friendly. Over and over, I was told by Syrians, "We hate George Bush, but we love Americans!" They are incredibly warm and welcoming people. I experienced their kindness time and again in my week there. From helping me find the right bus, to offering tea or food every time I walk into a place, to just sitting down and being willing to chat for hours, I enjoyed my time with the Syrian people.
Check out my travel web page at:
"Life is not measured in the number of breaths we take, but by the places that take our breath away..."