I’ve since tweaked the code for my super simple cart summary. Here’s my latest version:

HTML-

<div class="carthnm">

<ul>

<li class="carthnm_button"><a href="{$base_dir_ssl}order.php" title="View items in your shopping basket">Go to basket</a></li>

<li class="carthnm_total">Total: <span class="carthnm_number">{convertPrice price=$cart->getOrderTotal(true, 4)}</span></li>

<li class="carthnm_item">Items: <span class="carthnm_number">{$cart_qties}</span></li>

<li class="carthnm_basket"><a href="{$base_dir_ssl}order.php" title="View items in your shopping basket">Go to basket</a></li>

</ul>
</div>