Well that's a very definite step in the right direction (although I'd personally suggest using
Pathfinder rules system over D&D due simplicity on some matters. They're each essentially the same. Personally, I believe that playing is the best way to learn so... let's start you in a game, shall we?
Peruse the first page of the Guild here (preferably a thread that hasn't been inactive for a week+) and find a game that interests you. If nothing, I or someone could assemble a quick one-shot. From there we'd teach you the rules of the game, along with character creation and get you rolling ^.^
Also, welcome!