Feasibility of Overlay functionality with a Fusion Table Overlay

[Landon Garry]

The Project:  I would like to make a map of radio broadcast locations in the area. Upon clicking on each tower/antenna, I want information on this transmitter (height, freq, name, etc) to be displayed.  All this I have implemented and using Fusion Tables, as it is the easiest mode for maintaining my database of stations. However, my problem comes in the fact that I also want to draw an opaque overlaid circle around each tower, proportional to the broadcast power, while the mouse hovers over the icon.  (An alternative to this would be creating a list of the towers in the sidebar, with checkboxes or a button as a toggle for these broadcast radii.)

I had the circles working with multiple markers, but I'm not exactly sure how to attack the problem using Fusion Tables as my tower object.

I understand that the layers' properties limit them, quoting the Layers API overview .. "layers...may not be accessed via their individual objects, but may only be manipulated as a unit."  But, each element is clickable and the information is shown independently.. Therefore it leads me to believe that an alternative event could be set to be triggered during mouseover that reads the data from inside the marker window, and draws the corresponding shape. 

Please, if anyone knows whether or not this is capable of being implemented, say so and if at all possible just point me in the right direction.  My experience with Javascript and OOP is limited, so I would just like a bit of guidance to make sure I'm not barking up the wrong tree.

Thanks for any input,
Landon Garry