Well, Dragonball Z and Dragonball GT and then of course Bleach. Then it's Elfen Lied and... Well I don't know about Dragondrive, but it's good anime as well.
I have 4:
1.K-On! (have the dvd! except 4 season 2,still ongoing!)
2.Lucky Star (also have the dvd!)
3.Bakukyu Hit! Crash B-Daman (have the EXPENSIVE DVD..also the toy!)
4.Metal Fight Beyblade (searching 4 the dvd!)