My local airport - MEL (tullamarine) - has a number of points to view from, but non of them overly spectacular.
There is an obs deck between the International and QF domestic terminals, but the only thing you see are the terminals and a bit of Rwy 09/27. There are two designated carparks on the perimeter located under the northern approach (about 1km from threshhold) and 300m to the west of Rwy 16/34 (SSW of the intersection).
There is also a spot you can park under both the eastern and the southern approaches. Both are not designated car parks and both are about 300-400m from the threshhold. The southern approach is one of my favourite photographing spots, but unforutunately my equipment is not good enough to get my photo's on airliners.net