Final advice on my upcoming gaming build?

Hey guys, I posted here a month or two ago and was given a great answer on a build that would suit my needs but I wanted to go over once more and ask if there is any changes you think I should make in relation to my needs. So here it goes.

Approximate Purchase Date: Beginning of July.

Budget Range: 1.1k max is what i'm aiming for.

System Usage from Most to Least Important: Gaming, Watching vids, general home use e.g. office etc

Parts Not Required: Need it all. Looking for a decent gaming mouse, keyboard, mousemat but not too expensive.

Preferred Website(s) for Parts: somewhere that offers good value and its trustworthy, preferably free shipping but thats sometimes not an option obviously. Sites I view atm are ebuyer, aria but I'll leave it to you guys.

Country of Origin: UK

Parts Preferences: I feel more comfortable with a nvidia card. Obviously parts that are highly recommended and suit my budget / needs.

Overclocking: I mentioned before I have no idea how to overclock but the person building my pc I think will do. I don't want to push any OC'ing to risky levels though. If I did OC it would be just to a level that would increase my performance but with no risks.

SLI or Crossfire: Prefer to look at just the one card, plus my budget isn't really allowing me right now so one card seems the better option, and replacing it 2/3 years on.

Monitor Resolution: Well I need a monitor so I suppose it comes down to a monitor that fits my build.

Additional Comments: No need to spend more on looks just a case that has good air flow and will do the job. Want the PC to be quiet as possible.  

This was a built that Why_Me kindly provided for me which seems very solid, but taking into account my uncertainty about overclocking and my decision to use one card, I'm looking for adjustments to improve the cost of that build in relevance to my needs. Or giving me a different build, but I think that build looks solid. ALSO that monitor Why_Me suggested seems rather a good price and so I was wondering if you guys wanted to take that monitor into consideration and base the resolution behind that  

http://www.aria.co.uk/Products/Com [...] ctId=40813 £59.99 inc. VAT
Coolermaster Storm Scout All-Black Midi Tower Gaming Case - Black

http://www.aria.co.uk/Products/Com [...] ctId=41847 £70.99 inc. VAT
XFX Pro Series 750W 80+ Bronze Certified Single Rail

http://www.ebuyer.com/product/261255 £131.43 inc. vat Free Delivery
Asrock P67 EXTREME4 V3 1155 Socket 7.1 Channel HD Audio ATX Motherboard

http://www.aria.co.uk/SuperSpecial [...] ctId=43216 £155.99 inc. VAT
Intel Core i5-2500K 3.30GHz (Sandybridge) Socket LGA1155 Processor - Retail

http://www.aria.co.uk/Products/Com [...] ctId=39577 £19.99 inc. VAT
Coolermaster Hyper 212 Plus CPU Cooler

http://www.novatech.co.uk/novatech [...] 8gbxl.html £84.98 inc vat
G.Skill Ripjaws-X 8GB (2x4GB) DDR3 PC3-12800 1600MHz Dual Channel Kit

http://www.ebuyer.com/product/220986 £14.99 inc. vat
Sony Optiarc AD-5260S 24x DVD±RW & DL SATA Optical Drive - OEM Black

http://www.ebuyer.com/product/173804 £41.99 inc. vat
Samsung HD103SJ Spinpoint F3 1TB Hard Drive SATAII 7200rpm 32MB Cache

http://www.aria.co.uk/Products/Com [...] ctId=43660 £189.98 inc. VAT
MSI GeForce GTX 560Ti Twin Frozr II OC 1024MB GDDR5 PCI-Express Graphics Card

http://www.aria.co.uk/Products/Sof [...] ctId=38272 £72.30 inc. VAT
Microsoft Windows 7 Home Premium 64 Bit - OEM

http://www.scan.co.uk/products/215 [...] 01-250cd-m £87.85 Inc VAT
Acer S221HQLbd FullHD 21.5" LED Monitor

Total: £931.04 inc. VAT


Thanks a lot guys  

Edit: Sorry about the aria links. I found this card http://www.aria.co.uk/SuperSpecials/Other+products/MSI+... how does that fair? Aim is to run BF3 on High (not ultra) graphics with a smooth fps, and play WoW on the highest.