Since dad is likely footing the bill for these elaborate wedding events, it's only fitting that he be [nearly] as well fitted as the bride, especially if he's giving her away. Something with very classic bones and a modern fit works best; think traditional, but not dated. Look to designers like Tom Ford and Umit Benan for inspiration. Benan's eponymous brand specializes in updated classics, and the designer recently took the helm at Trussardi 1911. Check out a few looks from his Fall 2011 presentation.