We were just sent a video that's moving around the Net that gives the history of the Falkirk Wheel. In all the tips we've been given for our Glasgow-Edinburgh trip, none of our UK buddies have mentioned this rather awesome place! We looked it up on Wiki (& YouTube) and found two hits here on RS but there's not much on practical logistics.
If you have visited the Falkirk Wheel, we'd love to hear your impressions ... esp. for how to get there and back from an Edinburgh base. Public transport? Consider renting a car for the day? Did you need to book reservations for the Wheel?