Will be while before this will go public (my source doesn't yet know the carrier they're going to be for)...
...but GECAS has now firmed the LOI it placed for eight 777-26NLRs in July 2000. First delivery is scheduled 11/06, with the order completed in 8/09.
Engine selected is the GE90-110B1.
Payload option is 141,000lb.
This is [finally] some good news for the 772NG, as GECAS is generally more conservative than ILFC in terms of only buying aircraft when a customer has already been secured.