Upgrade cpu and mobo

hi am considering to upgrade my cpu and mobo,i was thinking of the amd fx series 8150 and 8320 or 50
my atm cpu is a q6600 that serve me well but time to step forward, i actualy play games like lineage ,rpg and fps games lf opinions or users with this cpus  
olso i have a palit 650 gtx ti and a evga 8800 gtx and i what to use the 8800 as a physics card so am looking for a good recommendation for motherboard