Is there any particular genre you enjoy?
Since you have DBZ and DB, which are shounen type anime, I suggest D.Gray Man. 103 episodes, the first season is slow between episodes 20-50 but it picks up after episode 51. Soul Eater is also good and it's currently ongoing. Also Slayers is good to watch, 3 seasons of it have been released in the US and the 4th one has been licensed but not released yet.
I've Girls Bravo is an ecchi type anime so give Inukami a look over. It's ecchi type with humor and some action.
Give Tsubasa Reservoir Chronicles a look over. It's by Clamp and I think has somewhere between 50-70 episodes or so. It's kind of a romance/action/adventure kind of anime. Also Code Geass is mecha like Gundam with some romance tossed in, 2 seasons long.