PAGE_VERIFY setting CHECKSUM - how to detect?

Does anyone know how to detect the CHECKSUM setting of the PAGE_VERIFY database option (2005 only)?

BOL (ALTER DATABASE) includes the following statement:

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PAGE_VERIFY { CHECKSUM | TORN_PAGE_DETECTION | NONE }

The current setting of this option can be determined by examining the page_verify_option column in the sys.databases catalog view or the IsTornPageDetectionEnabled property of the DATABASEPROPERTYEX function.

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However, there is no column named page_verify_option in the view sys.databases, and DATABASEPROPERTYEX('IsTornPageDetectionEnabled') does not discriminate between the settings CHECKSUM and NONE (it returns 0 for both)!

Actually, I was looking in sys.sysdatabases! sys.databases is just fine....