Nip/Tuck Season 5 Premiere Date & Season 4 DVD Release Date
According to Wikipedia, the fourth season will be released on DVD on September 4, 2007. The fifth season will have its premiere on October 23, 2007, and will consist of 22 episodes, making it the longest season of the show yet, with Joely Richardson returning for 15 of those episodes.
Some additional Nip/Tuck Season 5 story lines coming from the Dr. Troy's MySpace can be found here: http://blog.myspace.com/doctorchristiantroy