http://www.newegg.com/Product/Product.asp?Item=N82E16817371008

I purchased this enclosure (after doing a lot of research) and it really is as quiet as they say. Link to manufacturer's info: http://www.antec.com/us/productDetails.php?ProdID=77150

I had to figure out how to format the drive; the device manager saw it, but it didn't show up in "My Computer" until I got it formatted.

Enclosure is for a eSATA drive and has both USB and eSATA connections.

Sure you can purchase an external drive that comes with an enclosure, but I was unable to find one that had it's own cooling system.