The other thing to consider about free trials... you'll have a bazillion people who join for free, slurp up all your content, and then cancel. Unless you have an insane amount of bandwidth to throw away (or very little video content), you'll probably spend a fortune in bandwidth overages.

The people that I know of who are successful with free trials (or, for that matter $3 trials) either do prechecked cross-sells, or have *tons* of content so they're confident that members will want to convert to regular memberships.