RE: AeroAce/X-Twin planes
chazzman,
as far as i know, the electronics are only available in the plane itself. SpinMasters is the parent company of AirHogs, so you might be able to contact them and see if they can help you out. as others have recently mentioned, other stores are starting to carry the AA, i was just at walmart and they had 6 of them on the shelf, for 40 dollars. i've also heard that target is now carrying them. i'd give a call to the local stores around you and see if they have any in stock or when they'll be getting some, they seem to be selling quickly so i'm sure they're stocking the shelves more frequently.
on a side note, i've just started working on a new plane from one of the 3 views above, the De Havilland Mosquito (the second 3 view from above). not sure how big i'll make it yet, but i'm working on some graphic files for it so i can give it some color. a few others have built the Mosquito, one of them with the AAs electronics as well, so it should be a good flyer.
nick