I've run into this problem lots of times now, and it's starting to bug me. Most of the time it's not that big a deal, but there should nevertheless be something that can be done about it.
Inline images always come with a mysterious bottom margin, that seems impossible to remove. As if there's a permanent BR element right after 'em.
Here's an example; http://www.whatstyle.net/bla/imgmargin.html.
Does someone know a solution to this problem?