Our friends at MangaCast write The Comics List returns and there is plenty to talk about (even if most of our comments are about the All in One).
Bandai might only be releasing two titles right now (and they only have one more planned). Witchblade gets most of the pub (positive or negative) but Eureka Seven is a title that you should actively be looking for. Great compliment for the solid anime and the imagery might actually make it superior.
If you haven't picked up High School Girls maybe it is about time you checked it out. This is easily the best comedy in English but then again the content makes it the raunchiest title that is not 18+. From Eroica is a different type of humor but this is a guilty pleasure of mine. Very silly, very different and very smart; this shoujo classic is one of the original crossover titles. Worth a look if you need a break from all your SEINEN UP-ping.
Oh and about the SEINEN UP campaign. High School Girls = seinen bishojo. Tsukihime = seinen action. Tekkon = SEINEN Must Read!