The Boeing Company [NYSE: BA] and TAAG Angola Airlines today said they've reached a definitive agreement for the purchase of two 777-200ER and four 737-700 airplanes. The firm airplane order has a catalogue list value of $649.6 million and is valued at approximately $990 million with options. The first 777-200ER is scheduled for delivery in July of 2006, when the first new 737-700 will also join the fleet. The remaining airplanes on order will be delivered in 2006.