When installing structued cabling (Cat 5 or Cat 6) in your home, you definitely want to consider consolidating the plates as much as possible. The Home Depot click it together style (I believe you are speaking of the Quickport jacks by Leviton) is one manufacturers version that will allow you to mix and match for many different combinations.
While their are many manufacturers of these types of products, most manufacturers are using some sort of click together units to allow for more universal use. For example, you can install a jack that has a computer connection, a tv (coax) connection and connections for speakers or even a baby monitor camera if you like.
As for the cheesy look, all the manufacturers products look fairly similar. (They were originally designed for offices). But from my experience, if you use all white jacks, and identify the ones for computers (RJ-45) - they will tend to blend in to the wall better and not be such an eyesore.
Hope this info helps.