Depends on ur requirements....both are good
AFAIK if u are going to overclock ur system, i suggest going for the asus board...
if u are looking for a stable, full featured board w/o overclocking get the MSI one...
read the reviews here
*www.anandtech.com/mb/showdoc.aspx?i=2358
and here
*www.tomshardware.com/motherboard/20050103/