SevenCubed - 10:38 pm on Oct 29, 2012 (gmt 0)

In your stylesheet:
#link{height:333px;width:777px;}
.linkwholediv a{display:block;height:100%;width:100%;}

In your html:
<div id="link" class="linkwholediv"><a href="http://www.example.com/">Div Link Test</a></div>

Of course you will be limited to one link per div.