view & select from another workbook within a userform

I've got a "configuration" workbook that stores the filename of an arbitrary "data" workbook and the cell address of a particular piece of data in that file.

I'd like to design a helper macro for filling out the "configuration" workbook. I'd like to be able to display the contents of the "data" workbook in a userform and prompt the user to select a cell. The address of that selected cell would then be automatically stored in the "configuration" workbook.

Can anyone recommend a strategy? Is this plan even possible?

A combobox in the userform

Private Userform_initialize()
  Combobox1.list=workbook("date").sheets(1).cells(1,1).currentregion.value
End Sub

Thanks, snb. That looks like a reasonable strategy. But I was hoping there would be some way of embedding an actual worksheet object in a userform. Something that would recreate the appearance of the original worksheet.