Debian 6.0 64Bit minimal
Debian GNU/Linux provides more than a pure OS: it comes with over 29000 packages, precompiled software bundled up in a nice format for easy installation on your machine. This is the squeeze release
LAMP Server debian-6.0-amd64
Ready to run server with the popular LAMP stack. Al you need to run a secure webserver. Alll necessary components are there.
MySQL Database appliance
You want a standalone Database. Volia, here is your MySQL Database appliance. It makes it easy this way to seperate your database from your software if to have strategic reasons for that.
Postfix Mail and Spamfilter Server with ISPConfig 3 Controlpanel
Postfix Mail and Spamfilter Server with ISPConfig 3 Controlpanel. This appliance is a dedicated mailserver. The ISPConfig 3 control panel gives you the the tools to configure the mailserver to your liking.