I have used the Canon cable (USB) for 95% of my transfers over the last
year. I just find it easier than messing around with the card. I use the
Zoombrowswer software and I like the automatic loading and recognising the
camera when I connect up the cable. On the other hand I am constatly
removing the card anyway when it fills up and I'm away from my
pc.........never found any problems with this.

Pete