Yeah, after disappointing winter season (only MariMite is interesting), spring season looks definetely promising.
KonoMini, MADLAX and Hanaukyo Maid Tai La Verite are series that I have been waiting for, and many others looks interesting.
Gunslinger Girl will end soon, but after checking that webpage about Bakuretsu Tenshi, it looks like we have a new girls-and-guns series.