I found a great blog
that includes a 9 minute YouTube upload of David's victory over Marcos Baghdatis for the Copa Argentina title.
Nalbandian vs Baghdatis - Final Copa Argentina Peugeot
(Including Trophy Presentation and Ceremonies)
The Champagne ritual at the end is classic!
The site includes their "favorite Nalbandian point". I agree that this is one of my favorite points ever from David. It is amazing that he hit this shot for a winner. This is from the Paris Final against Rafa in 2007 that David won 6-4, 6-0: