I have a non-profit client which has a DB driven site with millions of records. It's currently running on Windows Server 2000 P3 CPU. It has a Stats Package and a MS SQL 2000.
I would like to offer them the ability to covert the site to Linux, PHP and MySQL. Due to limited funds, they wouldn't be able to perform the entire conversion in one phase.
My Plan would be to install PHP on the Windows server and convert the pages over one by one. Once the PHP pages are done, move the DB to MySQL and finally move the box to a Linux box which is cheaper per month than Windows and MS SQL.
The Stats package is the only sticky point but I will look for an suitable open source version.