I got my father a Toro Power Shovel/Snow Blower for Christmas a couple of years back, and it works amazingly well. With deep snow you have to work the layers, but it clears a lot, and it can save your back (It doesn't take up the space of a huge 300lb. snowblower either, nor is it as much of a hassle (I once lugged around a huge snowblower like that with a friend to earn some money clearing driveways, and it's no fun picking that thing up, in/out of a pick-up) ).
With the powder we had last weekend, we only needed a broom and a leaf-blower, so if the snow is very dry (Which I doubt right now), then you can simply employ the use of your leaf blower by itself. If the snow is wet, then we have to be more creative. What attachments do you have? You would need to be able to create enough air pressure to move snow, so if you have a thin-tip for the nozzle, then I can imagine that you can work small layers of snow at a time (You might have to even push it into the snow some, to force it loose).
If you want to actually fab. something, then try taking the blade out of the chainsaw. Attach the motor/handle to a pole (Or sturdy shovel handle), find a screw shaped horizontal blade (Like this:http://jbtoolshop.co.uk/images/2296ERA.jpg
) , find a way to attach the chainsaw belt to it (So that it turns the blade), and then it should throw the snow. Ideally, you want a cover over the blade so that it only throws the snow forward, or sideways. Be very carefuly though, because you don't want to hit electrical chords, or living things (YOU, a pet, etc.). Also, a cover is for safety too, because it will contain any debris, or a blade that decides to cut loose.
Another idea would be to do the same as I mentioned above, but instead of using an auger style blade for the throwing element, replace it with a pole/axle, and attach any sort of broom heads to it securely.
Anyways, just some ideas! Let me know what happens.