Not much more

Everyone's all up in Obama's face about having enough 'experience' (especially the Clinton camp, as if her years of purported experience are worth anything).
Just for comparison, let's look at another famous Democratic presidential candidate from Rico's childhood. A war hero, the candidate comes home and is convinced that he should run for Congress. He wins the election, and serves six years in the House of Representatives before being elected to the Senate. During his senate career, he's almost picked as a vice presidential candidate, but declines because he knows he's going to run himself for president, four years later.
So, we have a young man who's only additional experience over Obama is six years in the House of Representatives, during which he did little of note. He spends two terms as a senator, then gets nominated for president by the Democrats. In a very close race, he beats the much more experienced Republican and becomes the first Catholic ever elected president.
Obama, on the other hand, served as a senator in the Illinois legislature and had an unsuccessful run as a representative in 2000, then gave the keynote address at the 2004 convention, before being elected to the US Senate in 2004; he's still in his first six-year term as a senator.
Is Barack Obama another John F. Kennedy? Maybe not. But Hillary Clinton sure as shit isn't. Let's elect him and find out...