If you want to give D&D a try, you should check the game I started on here, Zelda Dungeoning.
Basically, a "watered down" version of D&D I started here. In some ways it's faster game play than D&D, because it's up 24/7, but in others it's not, because not everyone is always on and such. Just thought that a simplified type game can be a good intro to the genre if you'd like to give it a try.
</shameless self promotion>