I am going to develop a simple system of Perl CGI scripts which do email sending, file storage, and simple HTML user interface. The data should be stored in a MySQL database, HTTP is served with Apache.
As it is a typical server-side software system, I ask the question: How much RAM such a typical system needs?
I ask this because we are considering to order a Linux VPS. For example, on CoolHandle hosting VPS memory starts from 512MB. Is it enough for such simple CGI scripts?