We help IT Professionals succeed at work.

How many Servers do I need for SCOM 2007 R2

I am looking at setting up SCOM 2007 R2 only to manage the 100 servers we have.  I do not think I want to setup everything on a single server .  The typical servers we have are 2 dual core processors and 8 GB memory.   Based on this how many servers should I use and what roles / services should be on each?  Should I buy some larger servers in order to run more services on each?  
Comment
Watch Question

Commented:
This sizing guide will help you  plan you environment:
http://www.microsoft.com/downloads/details.aspx?displaylang=en&FamilyID=b0e059e9-9f19-47b9-8b01-e864aebf210c
Just keep in mind the following article with tips for implementing SCOM.
http://weblogwally.spaces.live.com/blog/cns!A913F865098E0556!607.entry
Regards,
Walter