SCOM R2 has this new feature Monitoring TUX boxes here are screenshots
This is a cool thing get the latest MP direct from microsoft Catalog. but first installing the TUX addon
As you can see the Tux MP’s and the TUX agents are in place.
Adding Tux Machines to the SCOM RMS 
Get the info TO microsoft 
TUX overview
Download the MP’s direct from the Catalog no more what do I need, it is all here.
Do an add and the product list is here
A TUX session is not far away….
The System Center Operations Manager team is excited to announce the availability of the Operations Manager 2007 R2 beta, which is ready for you to download through Connect today! Operations Manager 2007 R2 introduces key new and enhanced functionality, including:
Enhanced application performance and availability across heterogeneous platforms
. Delivers monitoring across Windows, Linux and Unix servers-all through a single console.
. Extends end to end monitoring of distributed applications to any workload running on Windows, Unix and Linux platforms.
. Maximize availability of virtual workloads with integration with System Center Virtual Machine Manager 2008.
Improved management of applications in the data center
. Delivers on the scale requirements of URL monitoring of your business.
. Meet agreed service levels with enhanced reporting showing application performance and availability.
. More efficient problem identification and action to resolve issues.
Increased speed of access to information and functionality to drive management
. Faster load times for views and results.
. Improved and simplified management pack authoring experience
The Operations Manager 2007 R2 beta integrates the functionality delivered within the Cross Platform Extensions Beta. New betas of the Interoperability Connectors will available shortly through the Operations Manager R2 Connect program.
