Budget pc build, is this a good choice?

[Joelan]

Rather than spend £400 on the next xbox this year, i thought i'd build myself a new pc, primarily for games like Battle Field and Call of Duty,
Here's what i've got;

PSU:430W Corsair Builder Series CMPSU-430CXV2UK, 80%+ BRONZE Eff', Uncertified, Quiet Fan, ATX v2.3, PSU

HDD;500GB Seagate ST500LM012 Spinpoint M8, 2.5" 500 GB HDD, 9.5 mm, SATA II - 3Gb/s, 5400rpm, 8MB Cache, 12ms

CPU;Intel Pentium Dual-Core G860, S 1155, Sandy Bridge, Dual Core 3GHz, 3MB Smart Cache, 30x Core Ratio, 65W, Retail

GPU;2GB XFX Radeon HD 7870 Double Dissipation Edition, 28nm, 4800MHz GDDR5, GPU 1000MHz, 1280 Cores, 2x DVI/ HDMI/ 2x miniDP

RAM;4GB Corsair DDR3 Desktop PC3-12800 (1600), Non-ECC Unbuffered, CAS 11-11-11-30, 1.5V

MOBO;MSI H61M-P20 (G3), Intel H61, S 1155, DDR3, SATA II - 3Gb/s, PCIe 3.0 (x16), D-Sub/ DVI-D, Micro ATX

CASE;Fractal Design Core 3000 USB 3.0 Black Mid Tower Performance Case 3x Silent Fans w/o PSU

My main concern is the CPU, it's only dual core and i feel like i may be bottle necking a tad, but the next CPU up would be something like an i3 (nearly twice the price)
Would it really be worth it to spend the extra money to get a better cpu?

Would it be worth getting a 6GB/S motherboard and an SSD, would it make a difference in gaming? (i don't care about boot times)

Is there a small case i can get? The Core 3000 is kinda big, could i move down to the core 1000? would the graphics card fit?

Is 4GB of ram enough? How much do most games use?

I want to use multiple monitors, ideally 3... would the 7870 handle 3x 1366x768 monitors?

Thanks
-Joelan

 

[Ashley Brennan]

if your going to be playing a lot of battlefield you should really get a better cpu like and i5or and i3 if your on a budget