Two Jews, three opinions, part 2: DovBear's survey of preferred ways to run a Seder (after the fact)

Free sample:

"A seder is primarily a teaching tool. Eveyone present should be prepared to learn and to teach, to share something brief but brilliant, and to listen patiently when it's the other fellows turn. So long as this rule is followed, the more snippets the better. This chatter is part of the charm of the seder. I couldn't imagine doing without it."

Tze u'l'mad, go and study.

And don't forget to check out the comments. There's interesting reading there.