I've got a client who wants to setup a cyber cafe in a remote country. All he needs is internet access to the web for some 15 computers and some ruementary email to provide to clients. i've already set my sights on Linux for the server doing email and internet proxying. My problem is the workstations, What would be the best os for this type of application ? I need a way to be able to limit access by time (ie 30 minutes and the system logs off ), security and website filtering (no porn or illegal stuff). I like linux for this too, how ever the feasability of this on a remote scale and his local tech support is the problem I'm having.

any suggestions ?