It seems that you're also waiting to see some 777's at BRU.
However, when I returned from FRA on July 10th 2001, and when I was on my way to the parking lot S7, I saw a B777 taking off. If I'm not mistaking, I think it was a Malaysian B777.
Anyhow, this is not a scheduled service I think, so maybe some other company hired the aircraft for just one single flight or so...
Ivan Coninx - Brussels Aviation Photography