I've used a several of them over the years from a variety of vendors. If you live near a Radio Shack this is a nice one (
http://www.radioshack.com/product/index.jsp?productId=2102977) that is a bit better quality than the 2 dollar monoprice but still reasonable.
EDIT: I see it says out of stock on the web site now but I was able to check my local stores and they do have this in stock so your local should as well.