CentOS 6.4 Gnome x86 is here.

You can download the images here

Notes: Packages added with “yum groupinstall” to the minimal version:

# yum -y groupinstall "Desktop" "Desktop Platform" "X Window System" "Graphical Administration Tools" "General Purpose Desktop"

You can also install the following optional GUI packages:

# yum -y groupinstall "Office Suite and Productivity"
# yum -y groupinstall "Graphics Creation Tools"

CentOS 6.4 minimal x86 is here.

You can download the images here

CentOS 5.9 Gnome x86 is here.

You can download the images here

CentOS 5.9 base x86 is here.

You can download the images here

Ubuntu 12.10 Quantal Quetzal is here (x86)

You can download it from here.