Hey Zac,
You'll be arriving obviously in either T2 or 3 so in the morning go up top level and walk toward the runway 16R/34L which connects T2 and T3 and there is a staircase there. Its best for RWY16R arrivals and departures but still decent for 34L departures although you dont get most arrivals.
This is the photo you will get with 16R(140mm focal length)
http://www.jetphotos.net/viewphoto.php?id=6485423
And here is a 34L departure from that spot
http://www.jetphotos.net/viewphoto.p...6625472&nseq=3
Cheers