Having just seen this site http://www.highpointvillage.co.uk & running it through yslow (it got an f 50/100), one way to improve it would be reducing the http requests - but:-
Would combining the scripts on a site like this with minify be contrary to the license of jQuery? could jquery be minifed in a file with the comment header retained at the top of combined file? or would one have to have a jquery.js file minified with comment header intact and combine the plugins?