Hi there,
I just wanted to post a solution I haven't found on this site yet. It's not the most clean solution but a very simple one. (it is not optimized either, but it gives a fair idea)
I hated the ?s=searchword, so I wrote some javascript that puts a clean "search/searchword" in the url. Put this in your searchform.php in the template directory:
<script type="text/javascript">
function doSearch() {
location.href='/search/'+document.getElementById('s').value;
}
</script>
<form method="get" id="searchform" action="<?php bloginfo('home'); ?>/" onSubmit="doSearch(); return false;">
<input type="text" value="<?php the_search_query(); ?>" name="s" id="s" class="inputText" />
<input type="button" id="searchsubmit" class="inputSubmit" value="Search" onClick="doSearch();" />
</form>
Preview here.