Futaba are good radios. I have 2, and they can be used with some flight simulators. If you have the cash I suggest at least a 6 channel, computer radio. They are never required for anything, but they are so nice to have.

Here is a free simulator that works with futaba radios.

[link=http://n.ethz.ch/student/mmoeller/fms/index_e.html]http://n.ethz.ch/student/mmoeller/fms/index_e.html[/link]

You will need a cable for it. If you are handy with a soldering iron you can make your own from diagrams found in the forms there. If not you can find them on the internet and e-bay for reasonable prices. If you are running windows XP you will also need to download a copy of PPjoy to make it work.

I don't think the package that they list is under powered, but it is over priced.
Since it is estimated at 19 oz following the rule of 75w per lb for aerobatic flight, you need about 120watts.
Assuming you will be using a 3 cell Lipo (11.1V), then you need about 12 Amps. (I always round up. better to have more power than not enough)
You need at least a 1200mAh battery for a 10 mintue flight So you need it to be rated at 10C CONTINUOUS or better (I always advise to use the continuous rating as your max rating so you don't chance runing your battery)