If your digital camera mounts like a USB memory (many cameras work this way), then it is a simple matter to hook the camera to the 770, transfer the pics and then upload away.
Another option may be to use a BT phone with camera. I have a Razr and it is easily accessible from my Mac so that pics can be transferred. However, I do not know if drivers exist on the 770 for OBEX file transfer.
Finally, just get a Wi-Fin camera (Nikon and Kodak make them) and forget carrying a computer altogether.