Is this config good for gaming pc for 2 years?

[N@m@n]

Main purpose of pc is GAMING.
Games like BF 3, Assassins Creed 3, Crysis 2, Far Cry, Hitman Absolution,etc

Intel Core i5-2500K Sandy Bridge 3.3GHz (3.7GHz Turbo Boost) Desktop Processor
Biostar TZ68K+ Motherboard
Zotac Nvidia Geforce GTX 560 TI 1GB DDR5 OC Edition Graphic Card
GSKILL 4GB DDR3 F3-12800CL9S-4GBXL Desktop Memory
Corsair CMPSU-650TX Power Supply
Cooler Master Elite 431 RC-431K-KWN1 Mid Tower Computer Case
Cooler Master Hyper 212 EVO RR-212E-20PK-R2 CPU Cooler
Benq G2025HDA 20 " Wide Screen LCD Monitor
Western Digital Caviar Blue 500GB 7200RPM 6GB/sec SATA 16MB Cache WD5000AAKX Hard Drive
Sony EIDE (ATAPI) CRX320EE-B2 DVD Combo
Logitech 910-000631 MX 518 Optical Gaming Mouse
Razer Arctosa Black on Black Gaming Keyboard

 

[skeletor]

Pick up HD 7850 2GB over GTX 560 Ti. Then it's good.

 

[RCuber]

if possible go for 8 GB RAM

 

[Siddharth_1]

If you have bought the rig then its OK(ie. it is good for 2yrs), but if you have to buy it then go with .ico. Also, you can get a gen3 mobo with this GFX to get the most of it and 8gb ram.

If you are about to buy the pc then pls tell if you can increase your budget.