A word of caution of using the -num_edicts flag for servers.
If you use the -num_edicts flag then it "has" to be used client side, or you might get invalid entity disconnects on clients (this is how it's done in SC with it's new version, both servers and clients get that flag.). There's another way of doing it, but you need amxx to do it easily, and to keep people from doing manual connects when the server is full, you can run a server with 32 slots and use the slot reservations plugin in it to hide the extra slots, each slot adds another 15 entities to the servers max.
If you use the -num_edicts flag then it "has" to be used client side, or you might get invalid entity disconnects on clients (this is how it's done in SC with it's new version, both servers and clients get that flag.). There's another way of doing it, but you need amxx to do it easily, and to keep people from doing manual connects when the server is full, you can run a server with 32 slots and use the slot reservations plugin in it to hide the extra slots, each slot adds another 15 entities to the servers max.