Since purchasing a Nikon D70 in April I've been shooting in JPG because of the greater number of shots that will fit on a CF card. I want to shoot in RAW, but to do so means purchasing either a portable CD writer or hard drive. Since I typically shoot about 300- 400 images per day over two days at an auto race, and since a 1GB CF card holds ninety images, that means 4 to 5 data transfers per day, or 8-10 per race weekend. To complicate matters, chances are that I'll have to carry this peice of equipment with me while shooting because it's not always possible to return to my car trunk between on-track activities. Knowing all that, are there any recommendations for a lightweight solution to this problem? And does anyone have experience with units with data transfer verification either through software in the unit or an included LCD screen to review the images?