I added an additional line at the bottom in the CSS - looks cleaner and separates the quote better in my opinion - just replace the original CSS with this.
Code:
.quote {
margin:15px 10px;
background: url(images/misc/q.gif) 0 0 no-repeat;
padding-left:25px}
blockquote.bq {
background: url(images/misc/q1.gif) no-repeat bottom right;
font: italic 10pt verdana, geneva, lucida, 'lucida grande', arial, helvetica, sans-serif;
border-left:3px solid #ccc;
border-bottom:3px solid #ccc;
margin:0px;
padding:0 5px 5px 5px}