Return Earliest Date Without Corresponding Blank Cell

I have a date range, containing blanks and values. I need a function to show the earliest date that contains a non-blank value. The function should be robust enough that I can sort by date and still show the correct data.

Example...(correct answer would be 10/26/2006)

Date ... Value
10/23/2006
10/24/2006
10/25/2006 0.08
10/26/2006 0.10
10/27/2006
10/28/2006
10/29/2006 0.18
10/30/2006 0.20
10/31/2006
11/01/2006
11/02/2006
11/03/2006 (0.18)
11/04/2006 (0.15)