I would also like to point out that this risky venture could have gone another way. In 1980, Carter sent a team into Iran to rescue the hostages. The mission went wrong in every possible way and was aborted. One helicopter crashed into a transport aircraft inside Iran, with those aboard killed. The hostages were then scattered across Iran to make another rescue attempt impossible.
The failure of that mission led to many changes, including more intense training and greater cooperation among agencies. But it was a debacle that certainly helped to bring down Jimmy Carter's administration. He gave the order to start the mission, and he gave the order to abort it.
So a mission like this isn't a given. It's high risk for the people taking part and (less physically so) for the planners and the President setting it into motion. It takes a lot of skill and judgment and a cool head from the bottom up and from the top down. This time around, Obama could have decided to go after Bin Laden with an aerial drone, which would have been safer and as effective but which would have killed people in the area and not netted the body (or the computers and equipment the forces found in the house). He went for the riskier choice. He does deserve some credit for that. It wasn't just a rubber stamp on his part.
I'd also like to point out that the plan involved respectful treatment (as far as was possible) of Bin Laden's body. They buried him within 24 hours, I think, as is Muslim custom. They had a ceremony involving a native speaker of Arabic. The only thing they could not do was inter him on land, because it would have made his body available for followers to take at some future time and create a shrine around. That too took mature thinking and foresight. I don't know which person in the hierarchy of command made those choices, but they were good choices, both clever and ethical.
I'm sure George W. Bush would have been glad for the opportunity to be in charge on the day this mission was carried out, and so would John McCain. I would have been equally impressed with either of those two men if the circumstances had turned out that way. So I am impressed with Obama.