I've been out of the loop with upgrading my PC seeing the last time I properly looked at anything was just over three years ago. So now the time has come that I can finally upgrade my PC! 
I've put together the spec below. I've already got a monitor, speakers, keyboard, mouse, hard drives and OS.

I've currently got a 8600 GTS graphics card and I was thinking of getting a new card maybe in the GTX 260 range. I'm not clued up on ATI cards at all so I haven't even looked there. I could possibly stretch to the 275 range if it would make a big difference but if not then I wouldn't bother.
Can anybody make any suggestions on any cases sub £100 that would be quite quiet too? I'll mostly be using the PC for gaming but i'm not entirely hung up on the graphics having to be perfect or top quality. As long as it's decent and smooth.
I'm open to suggestions on any other specs! Thanks for looking.
Oh and ignore the laptop hard drive! That's for something completly different!
EDIT: I've seen the P180 cheap enough on some other websites. Is it a good case?

I've put together the spec below. I've already got a monitor, speakers, keyboard, mouse, hard drives and OS.

I've currently got a 8600 GTS graphics card and I was thinking of getting a new card maybe in the GTX 260 range. I'm not clued up on ATI cards at all so I haven't even looked there. I could possibly stretch to the 275 range if it would make a big difference but if not then I wouldn't bother.
Can anybody make any suggestions on any cases sub £100 that would be quite quiet too? I'll mostly be using the PC for gaming but i'm not entirely hung up on the graphics having to be perfect or top quality. As long as it's decent and smooth.
I'm open to suggestions on any other specs! Thanks for looking.
Oh and ignore the laptop hard drive! That's for something completly different!
EDIT: I've seen the P180 cheap enough on some other websites. Is it a good case?
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