Install Debian from within another distro

[Cleverson Casarin Uliana]

Dear,

I have never used Debian before. I'd like to try it now, either the 
stable or preferably the testing branch. Because I have already two 
distros installed here, Vinux and Arch Linux, I'd like to know if there 
is any method for installing Debian from within another runing distro 
and have it talking after boot.

If there is some CD or pendrive speech enabled image similar to Chris 
Brannon's Arch Linux, please point me too.

Thank you,
Cleverson