I'm not sure if this is relavant. I just was playing around with my garmin a bit ago and found a site about getting free topographic maps in canada. I've used it in the trails a bit, hiking and that sort and it works fairly well. I thought I'd post the site in case anybody at all is interested or wants to save a few $$

http://www.ibycus.com/ibycustopo/
you can also search google or torrents for download instead of making your own. I think its great to have a dual use gps WITHOUT paying alot for it