If you can, also move all of your static content to S3 including every image, css, and js file. You're currently serving ~47 requests per user to load the home page. If you move all of your static stuff to s3, each client makes 1 maybe 2 requests to your server instead of 47.

If you're using apache, any content, including static files, has a huge memory overhead to serve. Also, because you're not setting far-futures expires headers, users have to check for every static item every time just to get a 304 not modified.

Last bit of advice, get firebug http://getfirebug.com/ and add yslow http://developer.yahoo.com/yslow/.