Thanks for the replies. 
Cheers for pointing out the memory problem, the 4x1GB was a mistake...
so...  
OCZ 4GB (2x2GB) PC2-8500C5 1066MHz Reaper HPC Edition Dual  £75.19  ?
or 
G.Skill 4GB DDR2 PQ PC2-8000C5 (2x2GB) CAS5 Dual Channel Kit  £76.36  ?
Please advise why i should buy a retail Q6600 if i am going to buy an after market cooler? I wouldn't need the stock cooler so shouldn't i save the money and buy OEM? 
As for the AC Freezer 7, is it quiet? I use a Scythe SamuraI Z on my current rig and it does a good job and is silent, which is why i chose it again.
The antec 900 is too flashy for me i'm afraid.