The P5B Plus:
http://www.newegg.com/Product/Product.aspx?Item=N82E16813131177
The P5B-E Plus:
http://www.overclockers.co.uk/showproduct.php?prodid=MB-219-AS
P5B Premium
http://www.newegg.com/Product/Product.aspx?Item=N82E16813131164
Are these meant to replace the P5B, P5B-E, and...