Replacement of Windows NT servers with Linux serve

couldn´t find a section for this one sorry admin/mods:

If you are sick and tired of the old NT servers at work or your own server :O)

take a look at this please:

If you already have a network of Windows clients, don't despair -- we can save you time, money and headaches by replacing NT servers with Linux servers.  The following table illustrates which NT services can be replaced with Linux:

Windows file sharing----Samba----------$0.00
Windows domain controller----Samba----$0.00
Windows printer sharing--Samba---------$0.00
Web server----Apache------------------$0.00
FTP server-----WU-FTPD----------------$0.00
Mail transfer agent-----Sendmail---------$0.00
SQL database server----PostgreSQL------$0.00

Oh yes its going to cost you ermmm $0.00

for more info:
http://www.roaringpenguin.com/services.html

Oh yes and the Sendmail is now used on Microsofts "Downunder" "OZ no rulez football"  site  !!!!!!!!!!!!
thats a fact :O)

Maybe  Bill G is short on money,to use this most wonderfull FREE product ?