If I could offer a single piece of advice to anyone starting out it would be: Buy the best equipment you can afford when it comes to a radio system and battery charger.
I started out with the DX6i and quickly found out that a 10 model memory goes quick! In addition, once I started to move into bigger airframes that required dual aileron and dual elevator I was in a real pickle! I have also realized as of late that only two programmable mixes in your radio really limits you for precision flight... Finally, I was running the DX6I on my simulator and the batteries ran low and the unit began beeping, I quickly ran it to the charger but the next time I went to power up my most recently programmed 450 helicopter all had been lost.
In regards to a charger, I bought one of those cheapie's and thought "this'll do" but I kept losing cells. Come to find out the unit was not properly balancing my batteries, in the end replacing the batteries and charger was twice as much as what I would have paid for a really nice charger in the first place!
These two things can really make or break ones experiences in this hobby.