When Dr. Bailey tells Ben that she is leaving to go to her mother's, he states that the reason he wasn't at the hospital during the shooting was because he was playing golf. Previously in the episode "Shiny Happy People," Ben had told Dr. Bailey that the nurse won't schedule surgeries on Tuesday mornings because that is when he plays golf. This shows us that the shooting happened on a Tuesday morning. However, in "Sanctuary" (S6E23) at the start of the day when Meredith goes to say hi to Derek, he comments that she never came home the night before. She reminds him that every Tuesday night she stays at the hospital to troll for interesting cases. This would suggest the shooting happens on a Wednesday, which is in contradiction to what Ben says.
Obviously the ornaments were removed or taped for copyright, but, judging by the shape of the logo, Derek Shepherd drives a Porsche.
Every episode is named after a song. "With You I'm Born Again" is a 1979 duet by Billy Preston and Syreeta Wright