Populating a list from a data table

Hi,

I need to populate a list from a data table (see attachment as an example). This data table contains the monthly sales data. I would like to populate a list in a new sheet based on 1 criteria "client name" column D.

Requirement (1)
Preferably I would like to have a drop down list on this new sheet that allows me to choose from all the clients that are listed in the data table.

Requirement (2)
The Drop Down list with the client names should update automatically based on the names that are in the data table, since every month there will be new client names.

Requirement (3)
The list that I am trying to populate should list out the data from the columns "Date", "Report No", "Supplier", "Description", "QTY", "Price".

Any ideas if and how this can be done?

PS: The Sales data table will have different row numbers every month, somewhere between 2000 and 3000 usually.