Here's an article called "Getting Ready For Your First Trial," by Murray Ogborn, that contains suggestions for all aspects of trial: voir dire, opening, direct, cross, closing, etc. (Note: pdf format.)
If you're looking for a "first trial" sort of book, there's none better than Steven Goldberg's "The First Trial: Where Do I Sit? What Do I Say?" Don't be put off by the title or the fact that it was published in the Nutshell series: Goldberg does a bang-up job; despite the 1982 publication date, everything he says is still pertinent; and it's got the best chapter on cross-examination you can find anywhere.