Internet installation

[Bart Silverstrim]

Is there any way to install Ubuntu Server from the Internet instead of 
entirely from CD?  I found a couple writeups for installing sans CDROM, 
but they usually end up having you dual-boot Windows with Ubuntu or 
having to edit partitions along the way.  I'm just looking for a way to 
get the CD to boot and then tell it to install from a repository instead 
of the media.  Anything like that exist as an option?

-Bart