Contributor Mehyar writes in with:
here are couple of favorite gadgets i take on trips....fyi.
Delkin usb bridge...eliminates the need for carrying a laptop to the field to store data. good for long trips to the countryside in which one has to be backpack weight conscious.
LaCie Slim Combo CD-RW..light weight and usb bus powered. i back up all my pictures with this. among other things, don't trust the high power x-ray machines of the airports.
together with the Arcdisk hd, they facilitate survival from a computer breakdown when faraway from home.