Win Server 2003 optimization

I just installed Win Server 2003 on my gaming system, and I'd like to know any optimization tips.
I already ran System Mechanic 6 Pro, but is there anything else that I can do to speed it up?

I uninstalled win2k3 and install 2kpro and noticed that my machine is running a LOT more faster. Fwiw, I had done all the shit (enabled accelleration, adjusted usage for programs not services, etc) on 2k3 and haven't really had to do shit for 2kpro.

btw, you might want to check out http://www.visualwin.com/ for a good checklist of shit to fuck with in order to turn enterprise into a workstation OS.