Environment variables

I am running software (apple shake) that requires some environment variables to be set if it is to be used in a networked environment. I can go on to each machine and edit /etc/profile to export the necessary variables, and that works fine. Basically, they need to be available whether or not a user is logged in, as many of the machines run as servers only and never have anybody logged in on them. eg. export NR_ICON_PATH="/Media/Shake/nreal/icons" Is there any way for me to set these types of variables in the OD server, similarly to the way I manage software update or screensavers? As I add machines to my network, the machine-by-machine method becomes quite tedious and error-prone, and if an os update ever overwrites my /etc/profile, well, that's not good. Cheers, Martin