RE: starting
The LA is a dog. The best bang for the buck in an engine that can be used well beyond training is a Thunder Tiger 46 Pro.
As for radios, most of the 4-channel offerings are of equal quality and features. If you're just starting out, the very best way to pick a radio is to contact the club you'll be joining and find out what they have for buddy-box options. If they've only got JR and you buy Airtronics, you're out of luck. A little coordination at the beginning can save some frustrating and disappointment when you're ready to start flying.