product options based on previous choice?

[canadadave]

Is there an addon that allows product options to be dependent on the first set of choices?

 

I've found an add-on for product add-ons but what I am looking for is:

 

Product (shirt)

Customer chooses color from a select box (I think i can get it to do this already)

another option box comes up, based on the selection choice of the 1st one