Currently I have about 10 sites, all of them PHP/MySQL, running on a Linux box with Plesk 7.5. Right now, i need ASP/MSSQL support, so I thought about migrating to Windows 2003 Server + Plesk 7.5 for Windows. Do you think i will notice a performance hit in PHP websites? Also, anybody knows if I have to get a MS SQL Server 2000 license in order to run a MSSQL database in one website? Thank you!