Falko, I thought I'd let you know that I was trying to go with your recommendation using Debian Squeeze. The ISPConfig 3 tutorial for 64 bit returns a 404 on the .iso file link. The others I found are not bootable? Fedora 14 it is!
This link doesn't works http://cdimage.debian.org/debian-cd/6.0.2.1/amd64/iso-cd/debian-6.0.2.1-amd64-netinst.iso ? This works for me, but visit http://www.debian.org/distrib/
