Database choice for WSUS

Choose the Database Used for WSUS
http://technet.microsoft.com/en-us/library/cc708473%28WS.10%29.aspx

Quote(s):
Neither WMSDE nor MSDE have a user interface or tools. Administrators are meant to interact with these products through WSUS
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From Professional MOM 2005, SMS 2003, and WSUS:
MSDE 2000 is severely limited and not recommended for a full production environement.
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Note ... that although SQL maintains the WSUS configuration and other metadata, the actual updates are not stored in SQL.
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Because the data stored in SQL does not include the actual content of the updates, the size of the SQL database will not directly correlate to the size of the content.