I'd read up on those progarams before installing them, I'm willing to bet their not what you want
Here's how I would do it, I'm writing from memory so this may not work, download and burn debian etch release candidate 1
http://www.debian.org/devel/debian-installer/
You want the netinstall CD, Most probobly i386. Burn that and boot from the CD.
When you get controll of the install type installgui to get a nice graphical installation program. Partiton and install as you like it. when you are offered to chose extra packages select Desktop Environment if you want gnome. If you want KDE select nothing.
Assuming you've chosen KDE You'll find yourself at the command line, log in as root and type
apt-get install xorg kde kdm synaptic
and after the install you should be at you're GUI, if you're logged in as root just reboot and log in as yourself.