Harris county Delinquent taxes access

[Rose Ventura]

How can i get a delinquent tax list for Harris County ?

I have gone through Mike Sullivan's website (Tax assessor) and you have to know a particular name and address.  As we all know, this is an awesome target in the real estate investing world.

I need a complete list of addresses and names. I know it should be in public records, but i am not sure where to look. is there a program i have to buy?