£650- Budget Rig

So I'm looking to find ways in order to cheapen this build. 

I do intend to mostly game on this PC as well as some basic office stuff on the side.

I have went with an AMD build as I have heard that they are mostly Price-Performance based.

Anyways, so I'll need a monitor and OS for this system also.

Currently I have this build in mind.

http://uk.pcpartpicker.com/p/1iM81

Monitor: http://www.amazon.co.uk/BenQ-GL2450HM-Widescreen-Multimedia-Monitor/dp/B005OPLG0O/ref=zg_bs_428652031_3

Is there anyway you can find ways to make this build cheaper, or suggest a cheaper monitor? Without massive drops in performance.

http://uk.pcpartpicker.com/user/Killerfrenzy96/saved/204r

Um, the overall price is more expensive (albeit £1), more power consuming and the GPU is worse isnt it? I do appreciate the power supply though, is that XFX better than the Corsair CX?

The XFX Pro series is one of the best. It easily beats out the Corsair CX series.

Okay, so I've made a few minor changes, any other recommendations? 

http://uk.pcpartpicker.com/p/1jNh3

I would stick with the Asus M5A97 LE R2.0 espically if it's cheaper. I also heard the Cooler Master 430 has really bad cable management options. This case is the best alternative for the price range. Everything else look's fine to me.

I see, so my final build would be this 

http://uk.pcpartpicker.com/p/1jUoO, okay thanks for the help.