First of all, I wish you luck in your music endeavors. Secondly, I would recommend FL Studio as well as TheZaaL said..
I recomend FL studio, reputed to be the most user friendly.
And I would second his statement. Also, from my personal experience with producing programs, (which to be honest is a bit limited, Music Maker on the ps2, Audacity on my linux partition, and FL Studio) it's the best program I have worked with so far, many features, and plugins to really give you pretty much any musical feel you want.
Also giving those links a read is a pretty good jump on a bit of good info.
If you don't evolve, you'll be devoured by those that do.
Feel free to leave feedback, I shall return the favor.