Avatar did a good job of living up to my idea of anime. Anime has good stories and good story arcs and avatar did. unfortunately I do not have cable so I do not know how it ends. Cowboy Bebop is Very cool as is Outlaw Star. Although Bebop has more style Outlaw has the attitude. There are a lot of good anime so check them out.
If you have cable or satellite, [adult swim] will be airing Cowboy Bebop this coming Friday. The channel also has been showing episodes recently, but they're on pretty late (like 4 in the morning). I think what they'll be playing on Friday will be at a more reasonable time.