Please visit Randy Ingermanson's site. He is a wonderful teacher of better writing and, over the past few years, I have found his advice crucial to helping me get better. Just now, I'm working on a critical - critical people - scene and came across this article which he has kindly given for free and I am excited about getting the scene to the best place ever.
This is the man who is good at reminding us what we already kinda knew but, because we were caught up in the day to day mundaneness of life, forgot. What he says about writing is what we expect when we read.
Go Randy. And, thanks!