Birds eye imagery is £20 for 600sq Km Although i haven't tried it myself yet
The topo map for Scotland is £70-£80 on Amazon i think and is good although it's not as good as the OS maps
I dont find it as user friendly as the older model, but i'm getting used to it now. It has good memory to hold lots of routes ect
There is also a free contour map you can download (usefull) cant remember what site though?