I have both glow & electric. The glow planes fly much better as a general rule. For learning I would say glow all the way. As others have said there are many .40-.46 size Trainers available & any one of them will do a great job for you while learning to fly. The only thing I enjoy electrics for are the little 3D Foamie planes. One Trainer on the market that is rapidly becoming a favorite of mine, all though I don't own it, I would if I were to buy another Trainer & it is the Thunder Tiger Trainer 40 ARF. It comes with a very reliable (so I've heard) Thunder Tiger .42 Engine for $150. This leaves room for a nice 6Ch computer radio or more if you're so inclined. Here is a link to it for you to have a look.
http://www.thundertiger4u.com/mark-wgp42-p-7325.html
I really think this is a great bargain & one sharp looking Trainer!!
Again you'll want to get with your local club & join the AMA as the others have told you. This plane & a qualified club Instructor should have you flying in short order!