It depends. If you take the external HD and do not mind downloading to the lap top frequently, then backing up to the externals (both of them) every night you would probably be ok.


This summer at yellowstone I was there 10 days. Before I left I added a 32gb card, I had 72 GB of CF cards with me. I Came back with all cards full, and alot backed up to the exteranl 1.5tb External and lap top. With 72GB I didn