I find writing loop based music to be extermely tedious in Cubase. The step sequencer MIDI plugin is totally crap, and I find the piano roll editor's interface to be frustrating at best. Don't get me wrong, Cubase SX2 has served me very well with regards to recording and mixing rock, but it just doesn't fit the shoe with techno IMO.

With regards to Logic, I pirated version 5 platinum a while back to see what everybody was raving about(excuse the very bad pun - I do not like raves. I stick glowsticks up kandy kid's pee holes actually) , but the thing kept dying on me at every turn. My guess is that it was probably a dodgey attempt to cicumvent the dongle. It'd be nice if it was still around on the PC platform to kick Steinberg's ass into a gear a bit more.