Canon just announced two new point and shoot cameras, the G-11 and the S90. Both use the same sensor, twice the physical size of the standard P&S. Canon redesigned the sensor for better hi ISO performance (the failure of most P&S cameras.) The S90 has a f/2 lens, small size (half the weight of the G-11), shoots raw, IS, and Li batteries. Alas, it has no viewfinder (I think the G-11 is the last man standing in the characteristics, bummer) and the long zoom is shorter than the G-11. Both DP Review and David Pogue had great things to say about the S90.
So, today I ordered the S90 and put my G-10 up for sale ($375 including second battery.) I pre-ordered the camera from Amazon; hopefully they will be in stock in a couple weeks.
Liz and Jim Patton 
You should just ship your G10 here to Argentina, I bet I could get at least $800 for it! LOVING my S90 by the way…can’t put it down. Enjoy your trip!