Don't forget that apt creates a file called 'sources.list' in the directory /etc/apt. Here's what my sources.list file looks like:
rpm
http://ayo.freshrpms.net redhat/9/i386 os updates freshrpms
rpm
ftp://apt-rpm.tuxfamily.org/apt redhat/9/en/i386 os updates extra
rpm
http://newrpms.sunsite.dk/apt/ redhat/en/i386/9.0 newrpms
rpm
http://apt.physik.fu-berlin.de redhat/9/en/i386 at-stable at-good at-testing
BTW...anyone know of a fast repository, other than these, that carries several good games? <<edit>> newrpms.sunsite.dk has a the FreeDroidRPG - you play Tux in a futuristic setting where the Evil MS Empire took over the world.
My girlfriend only played Diablo, Frozen Bubble and UT until we found that one.