wich are good step sequenser pluggins for logic?

[Crazy Fucking T]

i´m looking for a audio step sequencer in logic. does anyone got some tips i tried ex24 but i don´t like it.
Is there maybe a tracker pluggin for in logic or a good tracker witch is midiwired with logic.
i now work with fruityloops and soundtracker and then bouning it all to logic for mixing and vstinstrumenz.

peace T