[CentOS] minimum install Disks required

>>
>> get the -server ISO instead.  one CD contains a complete 
>> linux/apache/mysql/php/etc server.   you can install everything else 
>> you need from yum online later.
>>
> damn .. I'll get that then

-Server has no GUI AFAIK

after installation,

    # yum groupinstall "GNOME Desktop Environment"  
or
    # yum groupinstall "KDE (K Desktop Environment)"