Best PSU for build?

[Quasso]

The components I'm getting are as follows:

Motherboard - Asus P8Z68-V PRO/GEN3
Processor - Intel core i5 2500k OR i7 2700k (the latter is less likely due to price constraints)
CPU cooler - Gelid Solutions Tranquillo Rev.2
Graphics card - XFX ATI Radeon 6950 HD
RAM - Corsair 16GB (4x4GB) 1600MHz CL9 DDR3 Vengeance Blu Memory Four Module Kit
Boot drive - 120GB SSD Corsair Force Series 3
Storage drive - Seagate Barracuda SATA III 1TB
Case - Corsair Obsidian Series 650D

The question is - how powerful must the power supply be for this system?

Also, any advice on the best one to use and why will gain best answer (if it's good!)

 

[rolli59]

You staying with a single GPU a quality 500+watt would do but if you plan to go crossfire down the road a 750watt like this one will serve you well http://www.newegg.com/Product/Product.aspx?Item=N82E16817371049
Then again there are many more options out there and the question really is what is your budget?

 

[Quasso]

My budget for the PSU is I'd say up to £60. I'd preferably like one that would look nice through the window, but mainly that serves its purpose. Has good (modular maybe) cabling and is quiet(ish).

 

[rolli59]

This would be good if you stay with a single GPU http://www.ebuyer.com/245671-antec-520w-high-current-gamer-psu-0761345-06205-3 here is a review http://www.hardwaresecrets.com/article/Antec-High-Current-Gamer-520-W-Power-Supply-Review/1399
For 60 pounds there is nothing really that I want to recommend in the 750 range but this one is close http://www.scan.co.uk/products/750w-psu-ocz-technology-zs-series-ocz-zs750w-uk-86-eff-80-plus-bronze-sli-crossfire-eps-12v-quiet-fa Here is a review of the 650 variant http://www.hardwaresecrets.com/article/OCZ-ZS-Series-650-W-Power-Supply-Review/1361

 

[Quasso]

Actually it's most likely that for now I will stay single GPU. For most gaming purposes that setup would be fine for one 1080p HDTV on high/ultra wouldn't it? Thank you. Your replies have been great!

 

[Quasso]

Best answer selected by Quasso.

 

[rolli59]

Actually it's most likely that for now I will stay single GPU. For most gaming purposes that setup would be fine for one 1080p HDTV on high/ultra wouldn't it? Thank you. Your replies have been great!

Yes a single HD6950 will do well on 1080P!