Paul,

>I am looking at running a server with PIII500 and 128 mb ram. Do you know how MS SBS 2003 would run on this? I obviously don't want to spend money on both a new server and the software if i can get away with out doing it.

It should run just fine on a P3, although you will get better performance with more than 128 megs RAM. Earlier versions will install with 128 megs RAM, but I can't say for sure that the 2003 version does -- you'd have to check the minimum requirements to be sure.