Hi,
I stayed at the Holiday Inn Nov '05. There were 5 of us. When we came out of the airport, we just joined the queue for taxis. There was a girl controlling the queue with a walkie talkie so she asked for a bigger taxi to be sent for us, so we had to wait an extra approx 5 mins for that. The journey cost about 80 euro. She told us that the price is increased for more than 4 in a taxi plus an extra charge for each piece of luggage (of which we had loads!)
Hope this helps.
Karen