debian: size of stable, testing and unstable files

[Brendan J Simon <brendan.simon@bigpond.com>]

I'm considering mirroring Debian for our company.  I'd like to know how 
much diskspace I would require.  Can someone tell me the size of the 
following Debian Distros.  Is there a webpage with this information ??  
Is it automagically updated ???

Diskspace required for each of these Debian distros:

Intel x86/stable
Intel x86/testing
Intel x86/unstable

PowerPC/stable
PowerPC/testing
PowerPC/unstable

Thanks,
Brendan Simon.