and if so which is better? thanks for any help you guys can give 
http://msicomputer.co.uk/index.php?func=proddesc&prod_no=574&maincat_no=1
http://msicomputer.co.uk/index.php?func=proddesc&prod_no=565&maincat_no=1

http://msicomputer.co.uk/index.php?func=proddesc&prod_no=574&maincat_no=1
http://msicomputer.co.uk/index.php?func=proddesc&prod_no=565&maincat_no=1