An update on this old thread....was in Oahu last week and didn't even attempt to photograph from the perimeter. The security gate is still installed on Lagoon Drive. Tried some take-off shots from Sand Island but they were too far away even with a D60 and a 100-400mm lens...also they immediately turn south after take-off in to the sun !!!
However, on departure to LAX, I went down to the gate early and asked a security guard if it was OK to take pictures - sure he said, no problem as long as its not for commercial use. I spent 2 hours happily graphing thru the glass of the central pier with no hassle from security. Morning is good as the sun shines nicely on anything going down the cul-de-sac between the central and west piers. Runway shots were in to sun later on although early shots could get side on sun as they turned off the runway. Aircraft were landing from the west and B717's, B737's turned off just short of the central pier. All heavies (767 and larger) seem to use the runway out to sea though so you have to get those taxiing.
Thought the update may be of interest to some.