A good case for £50

[zaubertorf]

I am looking for a good case for around £50 which will fit a gtx 660

 

[Computerchap]

This case is great and will fit your card. http://www.amazon.co.uk/Corsair-Carbide-Series-Compact-Computer/dp/B009GXZ8MM/ref=sr_1_1?ie=UTF8&qid=1383694763&sr=8-1&keywords=200r

 

[realchaos]

The Corsair 200R is a great case at it's price point.
Another good case at the same price is the Bitfenix Shinobi:
http://uk.pcpartpicker.com/part/bitfenix-case-shinobi

you should be happy with either case. Just note that this version of the Shinobi does not look like the one found in the pictures in PCPP.
This version is full black and no window.