linking 2 dropdown list

Hi,
I need to link 2 dropdown lists in excel.
here is the scenario: I have 2 columns called car make and car model; each cell under these 2 columns are dropdown lists. if I select "honda" in the car make dropdown list, I want to see in the car model dropdown list only those models belonging to honda; all other models belonging to the other car makers should not be selectable.

Can anyone help me with this ??


Thank you

marius