Computer games definitely hurt the writing bug. My distractions of choice is Sims 2; though it's also, conversely, a great avenue for storytelling in its own right.

I think, in choosing the wording of 4&5, I was making a distinction between what you try to say in your writing (concepts) and how you try to say it (themes).

And I also let the character led me in my writing. It's their story, after all! :D