Non linear fiction?

I'm feeling distinctly whimsical at the moment... So I've got these two plot bunnies gnawing away at the ol' grey matter at the moment. One is a Bashir-centric story focusing on his relationship with Garak during the Dominion War; the second is a Doom/Trekverse crossover examining the many lives of John Grimm. In both cases the plots are unfolding in my head in a distinctly non-linear manner. That is, they start at a fixed point in the canon, but the narration then jumps all over the place.

I think that would make these character studies rather than more plot driven stories, which is what I've always tended towards in the past. No matter what I've written in the past, there's always been some catalyst driving things forward, something for the characters to react to. This time (these times?) around there's nothing like that. It's... more a series of recollections than anything resembling a story of the type I've written before.

And oh god, when did I start getting quite this neurotic about writing? If anything, a series of only loosely connected vignettes should be easy to write. Gah...

Okay, never mind me. I'll just be sitting over here rocking backwards and forwards wondering where all my confidence in myself and my writing went...

Sigh.