Dependent Data Validation Special Case

Hi,

Here is what I am looking for I have 3 list first is 'start date', 'end date' and third is 'Product'.
The LoV's are:
Start Date:
1
2
3
4
5
6
7

End Date:
1
2
3
4
5
6
7

Product:
Pen
Pencil
Paperclip
Eraser
Sheetbook
Ledger
Diluter

The requirement is that if start date is selected in cell A2 '2' column C2 should publish 'Pencil' and depending on the Start date the end date should have a date list equals or greater than start date i.e 2,3,4,5,6,7 (Date 1 should not be listed in List).

So basically it is dependent date validation but both list depends on list A.

Help on this would be much appreciated.

Thanks and Regards,
Nukecity83