RE: Trainer choices
I will second Mclinas recommendation of the LT-40 ARF with the OS .46AX and your choice of 2.4 radio system. Keep in mind that engines and radios can be transferred from one plane to another (barring total disaster) so good quality and ease of use justifies the dollars you'll spend on them. Airframes have a more limited lifespan early on in your 'career'. I like the LT-40 because it's large enough to see well and that's important as well as the low wing loading which allows for good contol at the slower speeds needed for landing. Head down to your local hobby shop (LHS) and see what's available and get a feel for what's out there. Also, visit a local club to find the preferences in your region especially with regard to radio brands as you'll want to get hooked up with an instructor at the outset and radio compatibility can be an important consideration if you plan to use a 'buddy box' technique. Ask plenty of questions. Flyers are always willing to share their opinions. The trick is to decide which ones to follow!
Welcome to the hobby and the very best of luck.