What i like the most about this episode is the Dr. Model thing. Izzy's photos are so hot. But, as it seems Izzy doesn't liek to brag about it. The way she reacted when that guy posted her pics everywhere in Grace hospital was so original... She took off her clothes (damn, not her underwear too!) and showed everybody her perfect body.
Also, i liked the scene when that man ,that's about to have his prostate removed, confesses to Izzy that he fantasized about her.
This is a great series and it's getting better and better in every episode.
P.S. Derek finally went on a date with Meredith