Stable Permanent Server: Minimun Requirements and Other

[JBenison]

Guys, I am trying to run a permanent server, mainly for some friends here in the Dominican Republic.

I have searched around the forum, but I can not find a paper on minimun requirements to run a server.

So if someone can tell me something about that. Preferably someone with experience in running a server (Image maybe?).

Anyway, if possible, I will be opening this servers and it will be regularily used by 7 to 12 players.

I have a:
Pentium II 450 as world/zone server
Pentium III 1.2G as MySQL Server
512 DSL Connection.

Is this good? Also how many zones do I need up? Is there something I can do (aside from buying new PCs) to make this run smoother?

Anyone knows how stable servers run? On what kind of equipment? etc...

Any suggestion, help or answer is greatly appreciated.

JB.