if I may make one suggestion, seriously consider getting a camera with a viewfinder. Yes, it's great that they have large LCD screens, but they're almost worthless in bright sunlight. I am so thankful that I have a viewfinder! We were at the Matterhorn recently and it was bright and sunny; there was glacier snow and a grey/white Matterhorn in the background. Strangers asked me to take their pix with cameras w/o viewfinders. I had to guess that the pix was ok when I took the pix. could only check AFTER the pix was in memory... and checking after each pix can run the battery down quickly!
I personally have had (oh about) 5 Olympus digital cameras since 1999; from proconsumer models to point-n-shoot ones and LOVE Olympus. The only other brand I would even consider switching to is Canon.
Also, check to see what the shutter lag speed is if you have kids or like to take pix of quick action. If there's a long shutter lag, you'll push the button and the kids will be out of the pix by the time the camera registers it digitally.
Good luck! There are new cameras on the market all the time. Just make sure you get one soon enough that you can practice in various settings (sunny, night, inside, outside) before your trip.
And don't forget to Smile!