Barack Obama's inauguration feels like a wedding to me, where everything from the ministers to the flowers will be scrutinized. And yes, even the Bible passage Obama turns to for the "I do solemnly swear..." part will be picked apart.
But for historical context, The Wall Street Journal has an excellent interactive graphic with pictures, the Bible, and the text used for several presidents' inaugurations. Here's a few of them (I pulled the KJV versions):
George W. Bush: "But they that wait upon the LORD shall renew their strength; they shall mount up with wings as eagles; they shall run, and not be weary; and they shall walk, and not faint." - Isaiah 40:31
Bill Clinton: "And they that shall be of thee shall build the old waste places: thou shalt raise up the foundations of many generations; and thou shalt be called, The repairer of the breach, The restorer of paths to dwell in." - Isaiah 58:12
Ronald Reagan: "If my people, which are called by my name, shall humble themselves, and pray, and ...1