Nektarios,
When I was there I shared Sunday breakfast with 22 Greek Air Force Pilots - they may be able to give you air cover. 
Justin,
I have noticed a bit of what Anastasios said, but I am always skeptical of numbers too. One Sunday I decided to count how many people were at our church, and it came to 156 (I was quite surprised). That was a feastday so there were more people than normal. On the Nativity and Pascha, it really gets packed, and I mean packed. Standing room if you are fortunate and for the many unfortunate, stand downstairs. I would guess there might easily be 250 - 300 people, but at the same time I doubt very many more than the original number actually commune. ?? So whatever that means.
Now I tend to think there is truth in both of what you and Anastasios are saying, I tend to side with the lower numbers myself.
