32gb Transcend CF w A700
My main computer has all images on a 1TB internal data drive, not the one with the OS. My main backup is an external 1TB with incremental backup on an external 500mb drive. All are Seagates.
On vacation to Germany this summer I will be taking 2X8gb Transcend CF Cards, one 16gb Transcend CF and maybe a 32gb Transcend a 4gb Memory Stick is always in the camera in case I run out of space and can't take time to change cards. I will take along a little emachine and a 500gb 2.5" external Seagate and will offload images at the end of the day, but will not wipe the CFs unless I run out of space on all the ones I am carrying on the trip.
If anything goes wrong it will probably be with the camera or a lens. I don't have an extra body - been waiting for an A-700 replacement. Hope it is full-frame.