rorosas wrotehey guys i finally made up my mind
i'll go with
CPU :3.4 GHz - i7-3770 8M/LGA1155
Memory : 2x Kingston DDR3-1333 4GB
Mobo : asrock Z77 Pro3
case : ThermalTake VM30001W2Z V4Black Edition Case /win
optical drive : LG GH24NS70-24X DVDRW - Dual Layer SATA Black
PSU :XFX P1-650S-NLB9 650W PSU
HDD : 500GB WD5000AAKX 7200RPM SATAIII 16MB
I would go for a bigger hard drive. Get a 1TB Seagate, it costs just as much as a 500GB WD drive.