lee,

I started about 4 months ago with a OS 40la, I'll admit, it dosen't have tons of power, but it is very reliable. I've got over seventy flights on it, not one deadstick, and I'm still on the same glow plug, however I would suggest going with the .46 if you can get past the color! All of the engines you are considering are good engines, with exception of the tower and gms. (i've heard they were the same engine) There are four tower .46's at our club, and only one is even close to being dependable. Do your research and go with the one that suits your needs the best as far as weight and power. As far as radios go, I'll have to agree with everyone else, go with the most channels and features that you can afford in your budget. I was considering a simple radio at first, but a guy in our club talked me into a basic computer radio; that was the best advice I've gotten so far. The computer radio makes it easy to adjust servo travel, reversing and you can use expo. if you tend to overcontrol your plane. They also have low battery alarms, timers, memory for multiple aircraft, and some basic mixing. They are really a better value when you look at what all they offer. That's my two pennys, have fun and good luck!

P.S. Try to find a club in your area, the fellowship is part of the fun in this hobby!