asus m2n68-am new vs msi k9n sli-f v.2 nforce 570

[outlaw2112]

i am trying to find out if i should get this msi mobo or stick with what i have and get a better cpu i have a asus m2n68-am and im looking at a msi k9n sli -f v.2 nforce 570 or a ASRock LIVENF6G-VSTA