Sean Williams' All-round effort against the West Indies in CWC 2007, where he won Man of the Match, even though Zim lost the match.
Russel Tiffin completing 100 ODIs.
I shall take Brendan Taylor 's powerful 60 against Australia in the Twenty20 World Cup 2007. It was so good that even "Anti-Zim" folks applauded that play by Brendan and agreed Zim was the best team that day.