I got the bluechart...once you download it, it is really the same as the chip, but you will have by the memory as well and for Garmin their solution is proprietary

so get the memory big enough for your charts. I hear magellan uses SD memory that is off the shelf, instead of Garmin's solution of reinventing a non standard memory package [img]graemlins/stupid.gif[/img]
However, you only have to download it once, Unless you are deleting it for some reason? Then you have CD charts on your PC too, then you can preplan on a bigger screen, or when you are traveling you can day dream about where you want to be and not think about where you are.
gus