With how cheap portable hard drives are (the small 2.5" ones), like mentioned before, go for that. And like you said, load them up each night in the hotel

I really recommend the small 2.5" pocket ones (powered by the USB cable only), as the 3.5" with power supply would be heavy for travel!

16gb SD card in my camera will fit maybe 600-700 RAW photos.

On a holiday, guaranteed you'll smash that!!

1tb = $98
500gb = $69
http://www.officeworks.com.au/retail...et-Hard-Drives