.NET Users Group - http://www.ssw.com.au/ssw/NETUG/Canberra.aspx
SharePoint Users Group - http://sps.uniqueworld.net/Canberra/default.aspx
Windows Users Group - http://cbrwinug.blogdns.org
Avanade
Avanade is the leading global Microsoft enteprise solution provider. Avanade is a collab oration beween Microsoft and Accenture thatr combine to deliver best practice consulting for the Microsot platform