Can I get better for £600?

I am about to build a PC. My budget is £600. I was wondering whether I could get any performance from different parts at a similar price. Also do the parts look okay?

Here is the build: http://uk.pcpartpicker.com/p/36BqBm

http://uk.pcpartpicker.com/p/RyqH8d

AMD brah

But your Intel and NVidia build is sweet for the money

http://uk.pcpartpicker.com/p/cmTMTW

Upped the PSU for overclocking headroom.  Dual channel RAM as well.  I would also recommend that you get an aftermarket CPU cooler, since the stock AMD one does a terrible job at cooling.