I'm leaning towards the Vantec because of the aluminum heatsink.
http://www.newegg.com/Product/Product.asp?Item=N82E16835185003
http://www.newegg.com/Product/Product.asp?Item=N82E16835888113
http://www.newegg.com/Product/Product.asp?Item=N82E16835185003
http://www.newegg.com/Product/Product.asp?Item=N82E16835888113