I've worked with sites that have this exact problem
What you could do is javascript out your flash etc. and reference the javascript files externally, that will lower your overall file size.
However you do risk the possibility (however slim) of some of those scripts taking longer to load.
So you have to decide if that's what you want to do - if you have a reliable web host, and page load time isn't an issue then I'd say javascript out all the non-necessary items.
FYI, by javascript out I mean use javascript with document.write :
<SCRIPT type="text/javascript"> document.write("<p>HTML code here!<\/p>") </SCRIPT>
then turn it into an external js file