You might want to take a look at the series of Server Overview articles here[/url].
They use SSIS, so it's all free (except for the time required to implement).
I use this... I have an Excel spreadsheet waiting in my email every morning to review all of the servers. I do in 10 minutes what it would take most of a day to accomplish all of it manually.
Wayne
Microsoft Certified Master: SQL Server 2008
Author - SQL Server T-SQL Recipes