Hello James and welcome to Wattflyer. The post you responded was from a user that we were watching to see if he was going to spam out site. Well he finally did step over the line.
I am not sure if you are asking about actual helicopters or the quadcopters. If it is the helicopters, you should consider the counter rotating double rotor helicopters. They are stable and relatively easy to fly. You can purchase them with everything you need to get into the air as soon as the battery is charged. They cover a large price range, so it it hard to give you a specific answer. I have flown them in the past but I am by no means an expert.
Again, quadcopters run the gamut from very cheap to extremely expensive. You can also get one ready to fly complete with batteries, charger and transmitter.
I hope this helps you.