Install from a "testing" CD?

Hi,

I'm intending to install Debian and I was thinking if I can install it
from a "testing" CD image (available at
[url]http://cdimage.debian.org/pub/weekly/i386/[/url] )

If so, what images would I need? Only CD1?

If installing "stable" and upgrading to "testing" afterwards is a
better choice, please tell me how it can be done.


Thanks a lot and sorry if this has been asked before,
Rafael.