The Nikon D80 doesn't have live view!
Nor does the Nikon d40, d40x, Or Nikon D60, if you desire such an unnecessary feature, you'll have to go with the Nikon D90, or a model from Olympus, or Sony- for a cheaper price. Imagine, holding the Heavy Nikon D80 at arm's length, and using live view ( if it was possible ) like a point and shoot camera- it's just not logical. The digital View finder is just fine! In my opinion anyway.
In general, live view is not important, or necessary. You should be just fine using the view finder. Really, live view isn't special. The Nikon D80 is a great semi professional model, not getting it because it doesn't have live view is preposterous- Get the D80, good camera. You don't need like view, i think you'll find the Viewfinder Satisfactory.
Also, live view with a DSLR isn't like the screen on a point and shoot, there's a second disruption to focus, to view it, and then to flip the mirror down to take the picture, the whole process can take a few seconds, which would make the process not Worth it- you don't need it
Nathan