Default date in a derived column expression

one of my SSIS packages use this expression to put todays date in if it is NULL:

(ISNULL(datejs)) ? GETDATE() : datejs

however, what I really want to do though is put a default date in like '2007-01-01' but I get syntax error because SSIS thinks it's a string, which it is I suppose.

Is it possible to do what I want it to?

Thanks

[421 byte] By [bobbins] at [2007-12-26]