All well composed music has some kind of plan, whether it is stubled upon as you write the track, or whether it is made up in your head. If it didn't have some kind of "plan" or pattern, it would be some kind of jumbled up mess, with no coherency. Even the likes of Autechre who produce some downright crazy off the wall audio create music to some kind of plan, or pattern.
I can completely sympathise with spst, as it is a hell of a task sometimes to arrange a track correctly. I'm not just talking about from a techno perspective, but generally, whether it's breaks or prog house, whatever, it is still tough.
There are basic rules to follow, but the key is that things should flow well, and if there are any clashes in your tracks, they should sound deliberate, rather than like mistakes in your composition...
If you do eventually find the magic formula let me know the secret...
;)
BombJack