60311 1/32 Zero Fighter Type 52 Real Sound action set
Looks like it's being re-released according to the Tamiya blog
Its pretty cool to see it in person.
Course, after a few times playing with it, it will get old, but its something that even non-modelers (dudes, of course) would be impressed with. It saves you from having to make the engine sound yourself.
Happy modelling! Roy