RE: transmitters
One thing to keep in mind before you pick a brand is to find out what they use the most of where you plan to learn to fly. You may be tempted to buy the same brands because first they will have the buddy boxes to match your radio brand, and second they will have the knowledge to help you learn any programing or set up questions/problems. That's why I fly Airtronics now. When I learned that's what most of the people at the field flew, so that's what I bought. That's what I fly now.
Hope this helps
Ken