R/C Helicopter Pilots- I have Some Questions

[Iroquois]

I want to get into R/C helis but I have some questions. First of all, do I need a special radio? I have a Futaba Skysport 4 already. What I mean is, do I need a radio that has both a throttle and collective functions or are there 4 channel ones available. Secondly comes in learning to fly. Real Flight R/C sim is way too expensive and my club doesn't have a training program for helicopters. I have my "Wings" for fixed wing aircraft, I can fly near perfectly and do some simple tricks. Is it something you have to learn on your own, are there instructional videos, or should I find someone who already knows how that can teach me?  
Lastly, give me some recomendations on good trainers. It must be easy to fly but easy on my wallet too.

[Rifleman]

Check with Scott or Steve Gray at FlightCraft in Kitchener.....they are on Hwy 7 on the East end of town.....

[Iroquois]

Check with Scott or Steve Gray at FlightCraft in Kitchener.....they are on Hwy 7 on the East end of town.....

Kitchener is not far but Hobby Hobby deals in Helis to and it's a heck of a lot closer.

[Rifleman]

The reason I recommend Scott of Steve is because of their knowledge of rotary wing craft.....check into their history on the Cdn Team at the world champs....