Hello, I planning my first serious trip since going digital. Since I'm easily filling up 6 GBs of CF cards in half a day at the local bird refuge I know I've got storage issue problems to address before my 2-3 day trip to Glacier. I'm looking for good portable storage options for around 20 GBs of images. What is everyone using? An economic solution is critical as funds are limited. Any suggestions from a fellow photographer would be greatly appreciated. I can't wait to get back to the park as it is my favorite place to shoot. I've been there two other times and burned a lot of Velvia! Looking forward to seeing what I can do with the Minolta 7D!