Improvements that are possible?

[Smoggie]

Hey, currently have a budget of £770 for a gaming PC,
I was earlier quoted by another member of the forum (olivier renault) this setup:

Intel Core i5-2500K 3.30GHz (Sandybridge) Socket LGA1155 Processor - Retail £161.99
MSI GeForce GTX 560 1024MB GDDR5 PCI-Express Graphics Card £131.99
Asrock Z68 PRO3 Intel Z68 (Socket 1155) DDR3 Motherboard £105.98
OcUK V-Line 221V2SB 22" Widescreen LCD Monitor - Black £83.99
Microsoft Windows 7 Bundle - Home Premium 64 Bit £68.40
Options applied to the above product:
Western Digital Caviar Blue 500GB SATA 6Gb/s 16MB Cache - OEM (WD5000AAKX) £29.99
OCZ ModXStream Pro 500w Silent SLI Certified Modular Power Supply £47.99
Cooler Master Elite 430 Windowed Case - Black £37.99
Microsoft SideWinder X4 Gaming Keyboard - Retail (JQD-00006) £29.99
Corsair Value 4GB (2x2GB) DDR3 PC3-10666C9 1333MHz Low Voltage Dual-Channel Kit £29.98
Logitech MX518 Gaming-Grade Optical Mouse (910-000616) £25.99
(This can be changed during checkout) Shipping : £13.75
Total : £770.77

Was just wondering if there would be any possible improvements to make without increasing the price, like a different graphics card.

Thanks in advance

 

[Smoggie]

Thanks for all the help - I think I'm more confused now than I was at the start! Far too many choices!

I think I'm edging towards going with a HD5850 as it seems like I won't get a lot of extra performance for the extra money spent on a GTX560i. Is it worth spending a bit more on a motherboard that supports xfire so I can upgrade cheaply in the future or is it more likely that it'll just be easier to replace the graphics card when it comes to that point?

I think I'm now going to take Windows 7 out of the requirements as well (and bring the budget down to £740) so hopefully this will help squeeze a bit more out of the budget.

The only other thing I'm not really sure about is overclocking. I've never done it before but think it's something I'd like to give a go to. Will the MSI mobo above (C45) allow overclocking? What's the difference between the C45 and the G45 which is £10 more?