I HIGHLY recommend either bringing a laptop, a photo transfer hard drive, an iPod with the photo transfer connector or copying the photos off every night at Shutters.
Just read
"Heartbroken family needs your help" where the family's camera was dropped on the last night and they lost every photo.
This is the perfect reason to make sure you back up your photos during a trip. I have a 4GB microdrive in my camera and can take 1100 photos at highest resolution and still bring my laptop and download each night when I go on vacation. That way, I have two copies....if the card gets damaged, everything is already on my laptop except for what was taken since the previous night.
What if your camera falls into the pool, or worse yet, drops overboard? What if it gets stolen or is lost?
Having a week's worth of photos sitting in the camera with no other copies is just asking for a huge disappointment if something happens.
Mini Hard disk solution: