I would suggest getting a Jr Venture 30 and a 8103 radio.
The heli comes set up for beginners. It is very smooth and good flying machine. Parts are easy to get and very cheap. It is a ccpm
machine which makes very easy to repair after crashing, you will crash every body does while learning. After you have mastered it you can make it a 50 size machine for less than $125 minus motor.