Only one's I'm really keeping up with at the moment are Shonan Junai Gumi (GTO: The Early Years), no surprise of course, and Fullmetal Alchemist. I'm gonna start keeping up with Mu Shi Shi too I think, seems like a really interesting series based on volume 1.
Unfortunately I really only read what I can buy, and I'm not otaku enough to blow my paychecks on manga or anime. Otherwise I'd be reading a lot more.