Phantom,
I would suggest looking at getting a good radio to start with instead of purchasing a 4 or 5 channel now and then upgrading to a different radio later.
As far as the engine I would go with the TT pro46 instead of the OS just for price alone. Both engines are really good but for the price it is hard to beat
the TT engine.
There is a trainer from world models called the Mach I that is really easy to build (ARF).
The quality is top notch and I think is one of the better choices for a trainer.
My extra easy2 was retired after I was getting ready to set it up for my kids and found to many problems that I did not want to mess with.
So I purchased the World Models Mach I for 70-79 dollars. The wing screws on the fuselage with two metal screws that could be changed our
for nylon if you were afriad of a crash and the wing breaking off.
If you are looking at doing video you might also look at a sixty size trainer which would allow you to move into photography as there are a few
old 60 size trainers used for this. The size of the airplane allows for this to be done easy and it would give you a good platform to start with too.
John