[jQuery] Append Help

[Dave Maharaj :: WidePixels.com]

I have a div that I want to add new content to after the div closes
 
<div id="original">original content here </div>
 
<div id="something_new> new content here </div>
 
So the new content I am adding gets inserted after the original div.
 
I tried:
 
$(response).fadeIn('slow').appendTo('#original');
$(response).fadeIn('slow').append('#original');
$(response).fadeIn('slow').prependTo('#original');
$(response).fadeIn('slow').after('#original');
 
But its always ending up inside 
 <div id="original">original content here 
        <div id="something_new>new content here</div>
</div>

What am I doing wrong here?

Thanks
 
Dave