There are so many good trainers and so many times has the Post What Trainer should I Get gone buy in RCU. (Do i search ill youll find alot of information). Im not sure what size and kit/ARF you want but from your post you probably want a .40 kit. The Tower kit is nice but its not as good as it looks read the requirements in the tech notes and ull see why its only $50. Ive heard great things about the tower trainer but ive also heard great things about Eagle 2, PT-40, and the Kadet LT-40. In the ARFs great review on the Avistar and Tiger trainer. My first plane was the Kadet LT-40 and i highly suggest this plane. Although it is slightly more expensive than most trainer it comes with everything so u dont have to buy anything extra for your plane accept covering, building tools etc..
I had no building experience at all with anything and was able to build this kit very well. It has a huge manual that gives a picture at almost every step. The Kadet flew very smoothly and was easy to control. I used a .40 LA on it which flew it very well but there was no added power (That can be good and bad on a trainer).
As a first plane pick up a trainer learn to fly then go on to your prize beauty plane like the Cessna (Very nice plane) and the Piper (Also nice).

Hope this helps,

Papa