Combine text constant with text selected from a dropdown validation list

Good morning Gentlemen,

I have a list of price categories in a data validation dropdown box, "Supplier", "Partner", "End-user" etc etc. What I would like to achieve is that when a category is selected, it appears in the cell with the prefix "Category:" added eg, selecting "End-user" would result in "Category: End-user" being displayed. Yes I could add the prefix to each item in the list, but it reduces the distinction between them. And alas I cannot put the prefix in the preceeding cell. Any ideas?