I was on that coach that broke down coming back from Norwich - we had to stand up in the aisle of the one that stopped for us after ours broke down.
But that was nothing on the return from Wembley in 1994... That can't be beaten for me - so close to our first FA Cup Final. Play-off semis will come and go but FA Cup semis are once (or twice) in a lifetime...
Notable mentions: Semi replays in 1994, 1990. (Maine Road car parks full of celebrating scum...), Leeds Play-off '87, Portsmouth away (L3-0 '87 season). Wimbledon at Selhurst Park (lost 5-2?, Gerrard had a 'mare), Tottenham L5-0 (3 down after how many mins?!?)