[Build Ready] Help me complete this under £450 rig for BF3

CPU: Intel Core i3-3220 3.3GHz Dual-Core Processor (£89.48)

Motherboard: ASRock H77M Micro ATX LGA1155 Motherboard (£62.99)

RAM: Crucial 8GB DDR3-1333 (£28.42)

Graphics Card: XFX Radeon HD 7850 1GB (£126.94)

Case: Cooler Master Storm Scout ATX Mid Tower Case (~£60.00 @ Ebay)

Power Supply: Corsair TX 650W Power Supply (£70.16 @ Ebuyer)

Total: £437.99

I generated this list through the choosemypc website and through snooping around other websites. I already have an optical drive and HDD, so I don't need those.

I intend to run BF3 at around 60fps on med-high, and want to run modern games for the next year or so. Will this build help me achieve this, and if not, what can I change? I really want to keep it under £450 - but can stretch to £500 if I reaaaaaally need to.

Thanks!