going to Turkey F1 2007 - Kurtkoy circuit at Ýstanbul Park, rookie spectator

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I bought my air ticket to get to Ýstanbul but am seeking a bit of help if any others have made the trip to the Petrol Ofisi Turkish Grand Prix in late August 2007. It'll be my first time in that country.

The most obvious question is about which grandstand to get a ticket at. http://www.biletix.com/f1/ & http://www.istanbulgptickets.com/
Is there a reasonable way to get to the track by train from central Ýstanbul. I've been told just to take a cab but it's about 45 Km west of town and I don't want to be stuck in traffic whilst cars are on the track. It says there are busses:
"IETT Ýstanbul Municipality ( http://www.ibb.gov.tr/en-US/AnaSayfa )buses are also available on race days from major points Atatürk Airport, Taksim Square, Mecidiyeköy, Kadýköy, Bostancý and Pendik"

The main website for the F1 track seems to be down - www.msoistanbul.com
I'm landing at the smaller (Easyjet) Ýstanbul airport - Sabiha Gökçen (SAW). Has anyone stayed near there for the night? It seems close to the track, almost long walking distance - http://www.formula1-istanbul.com/f1/.../f1ulasim2.gif + http://www.formula1-istanbul.com/f1/.../f1ulasim1.gif

cheers,

_h