After its surprise appearance on the Hong Kong Apple site, they have released the new Xserve.  The newest iteration of their server platform come with your choice of Quad-Core or 8-Core Nahalem processors, 3GB Ram and 160GB hard drive.  The new processors are more power efficient and offer some interesting specs when using all cores to their fullness.  Prices range from $2999 and $3599 and can be configured from there.

 

[Apple]