I have a G4 450 or 733 avaliable for use off-site. This server will be running mail/web/ftp services as well as afp/dchp/router/firewall services. Obviously the 733 is going to do a better job but would a 450 machine with say 512meg of ram be able to do this, or would it be better to max out the ram to 1.5g. Stock ram right now is 256.