RE: Like jumping in a lake without knowing how to swim!
I will have to second what scooterinvegas said. Start with the Hobby Zone Super Cub (go with the LP version). The ready to fly version is only around $180 and parts are easy to get and the plane is easy to repair if anything happens.
I had flown planes as a little kid with a friend's dad, but took about 25+ years off. I got the bug again and purchased the Super Cub to get familiar with again. I flew the Super Cub for about 6 months and decided it was time to move up. This plane is only a 3 channel plane...easier to learn. I would start there and learn how the plane reacts to all of your transmitter inputs and how you should react to what the plane is doing. Just my suggestion.