Would this make a decent gaming pc

Optical Drive : ASUS DRW-24B1ST/BLK/B/AS Black SATA 24X DVD Burner - Bulk - OEM

PSU : 80+ gold Rosewill Capstone 650W

CPU : Intel i5 3570k 3.4ghz (LGA 1155)

RAM : Corsair Vengeance 8gb 1600 (2 x 4gb) (240 pin)

Graphics Card : EVGA nVidea GeForce GTX 670

Motherboard : Asus Sabertooth Z77 (LGA 1155) (ATX format)

Case : Rosewill Challenger Mid tower ATX

Hard drive : Western Digital 500gb 7200rpm SATA 6.0gb/s

Monitor : Asus VH24H 23 FHD 1080p

After market CPU cooler : Cooler Master Hyper 212 EVO direct contact

Also should i get windows 7 or 8 and which anti-virus? Would this be able to run Battlefield 3 at 60+ fps? first build btw

Thanks guys