I wouldn't call us particulrly experienced bushwalkers, but we have done a fair amount of bushwalking. We do like in the World Heritage Blue Mountains national Park, where we can literally walk out our door and onto a beautiful bushwalk.
We're both in our second 50 (so we're not spring chickens any more: and some days it feels more like that than others), and we walk pretty slowly most of the time.
Our kids bought us a Magellin eXplorist 100 GPS for doing the Great North Walk in 2007. It was great to have with us to locate us specifically: I used it extensively to mark positions; and it really helped on one occasion when we lost the track.
We were so impressed with the benefits that the eXplorist 100 gave that we decided to upgrade to something that you could load maps onto, and tracks back off again. We finally decided on a Garmain Oregon 300 and purchased the Australian Topographic maps in 2009.
We upgraded to the Oregon 600 in 2015 in preparation for the AAWT: it's a pretty amazing improvement.
I extensively use RouteConverter which is a free of charge open source tool to display, edit, enrich and convert routes, tracks and waypoints.
Of course I've got the Garmin software and Google Earth, but RouteConverter is much more intuitive and easier to use. If you just want to try it out without worrying about updates, you can try it via WebStart.
It's well worth a donation.
Where are we now?
We're a couple of days from leaving, well: probably left now, for a South-to-North traverse of the Australian Alps Walking Track. This has been 7 months in the planning, which has exceeded all my expectations in terms of intensity and difficulty: I mean, I love the planning and the spreadsheets, but after 7 months all I want to do is get on to the track and start walking!