Any rig/computer experts?

I know alot about software but nothing about hardware, despite that i have planned my own gaming desktop with a budget of 600, i went a bit over it but i would people's opinions (I want purely with novatech as i've used them multiple times)

Motherboard: http://www.novatech.co.uk/products/comp ... ay00z.html

RAM:
http://www.novatech.co.uk/products/comp ... 8gbxl.html

Case:
http://www.novatech.co.uk/products/comp ... rowle.html

(I plan on buying a few more neon's making this thing look awesome)

Power supply:
http://www.novatech.co.uk/products/comp ... sg500.html

Grpahics card:
http://www.novatech.co.uk/products/comp ... v-550.html

HDD:
http://www.novatech.co.uk/products/comp ... 524as.html

DVD Writer:
http://www.novatech.co.uk/products/comp ... bbebe.html

Processor:
http://novatech.co.uk/products/componen ... gmbox.html

Windows 7 64 BIT:
http://novatech.co.uk/products/software ... 02050.html
Total:
£553.87 + £60 assembly charge.