£540 everything other than Graphics Card

oh and i want a screw in heatsink for the CPU i hate the clip in type, snapped my last one ....

Here's a few website to shop about for the best UK prices:

www.ebuyer.co.uk
www.scan.co.uk - check their "today only deals"
www.amazon.co.uk
www.novatech.co.uk
www.aria.co.uk
www.overclockers.co.uk
www.dabs.co.uk

Ebuyer and Scan are my preferred out of the bunch.

Parts ideas:

CPU: i5-2500k
GPU: Not required
MOBO: Z68 - something like ASRock Extreme3 GEN3
RAM: 4-8GB 1600MHz DDR3 Dual Channel 1.5v CL9 (either 2x2GB or 2x4GB sticks)
PSU: 430w Corsair builder or 500w Corsair/XFX/Antec/SeaSonic (see which prices are best)
HDD: The smallest size you can get away with really at cheapest price. HDD prices are insanely high currently. 7200RPM would be recommended though.
CASE: Your choice really   almost any mid-tower-atx would be fine   don't waste too much budget here on something "unnecessary"
OPTICAL: DVD-RW of your choice, LG and Samsung both do Optical drives for about £15

just looked at scan today only deals -

1TB Seagate ST31000524AS Barracuda 7200.12, SATA 6Gb/s, 7200rpm, 32MB Cache, 8.5ms, NCQ

8GB (2x4GB) Corsair DDR3 Vengeance Jet Black, PC3-12800 (1600), Non-ECC, CAS 9-9-9-24, XMP, 1.50V

Asus P8Z68-V LX, Intel Z68, S 1155, DDR3, SATA III - 6Gb/s, SATA RAID, PCIe 2.0 (x16), D-Sub/ DVI-D/ HDMI, ATX

Intel Core i7 2600K Unlocked S1155, Sandy Bridge, Quad, 3.4GHz, HD3000 IGP 850Mhz, 8MB Cache 95W Retail

£435, sounds decent ish? might make me go over my budget when i add in the other costs?

No reason AT ALL to buy the i7-2600k over the i5-2500k for gaming. They perform exactly the same. If anything, buy a bigger PSU and buy another 6850 with the money saved to make a crossfire build.

The ASUS motherboard is good, but be aware it doesn't support SLI. Something like the ASUS P8Z68-v PRO might be better or one of the equivalent Gigabyte Boards. Look for something that supports crossfire/SLI at x8 x8 if you think you might consider doing this.

The SeaGate barracuda is a good HDD, although you haven't included prices for anything on that list so I cant really comment if its a worthwhile purchase or not  

RAM is good stick with it.

Do you plan to over-clock? An after-market CPU cooler might be another worth-wile consideration.

Cheaper HDD:
Samsung Spinpoint F3 1TB £83
http://www.scan.co.uk/shop/computer-hardware/all/hard-d...

I would recommend getting RAM without tall heatspreaders as they are unnecessary on DDR3 RAM and just make it more difficult to choose a CPU cooler, if you ever decide to install one.

Case suggestion:
Xigmatek Midgard II £59
http://www.aria.co.uk/Products/Components/Cases/MIDI+To...

+1 Corsair do a Low-Profile version of their Vengeance RAM with the same price and specs.

Its called "Corsair Vengeance LP"

although i was going for a Intel setup alot of people have told me AMD Phenom II X2 560 Black Edition is a great cpu - well bang for your buck, is amd something to look at? never liked amd, but have no reason not to like them

http://www.amazon.co.uk/Gigabyte-XKT-1155-Z68AP-D3-Moth...

+

http://www.amazon.co.uk/dp/B004FA8NX2/ref=asc_df_B004FA...

= £240

+http://www.amazon.co.uk/G-Skill-Ripjaws-Sandybridge-Pla...

£38



So £278 for i5 2500k + motherboard + 8 gb ram, sound decent enough? that leaves me around £280 for the following:

psu
case
hdd
monitor
drives(dvd/blu ray)

possible?

PSU your looking at about 450w for a single 6850 which will cost around £50-60
Case = £50-60 (dont spend too much here) could do it even cheaper if wanted
HDD = £83 Spinpoint F3 that someone posted earlier
Monitor = £120 ish for 22" 1080p
DVD-RW Drive = £20 ish

Total of roughly £300 - could be done cheaper with deals and offers and some shopping around. Certainly do able with £280.