@staffsMike: I just found the 64GB Mtron at £1175 for pre-order (not as bad as I expected actually, considering that the 32GB version is said to cost $1500 - and we all know about UK mark-up). That leaves £825 for everything else.
CPU: £160 (Q6600)
Cooler: £23 (Scythe Miné
GFX Card: £200 (8800 GTS)
PSU: £65 (HX520)
Case: £70 (Antec 900)
RAM: £ 70 (4GB Geil Black Dragon - I ripped that from you, but probably would've gone the Aria Special on OCZ if it was in Stock - even though the timing is a bit worse - almost £20 of saving to be had)
Sound card (I insist): £50 ('real' X-Fi OEM)
Motherboard: £110 (Abit IP-35 Pro) I know that the IP-35 is much better value, but I'd pay for µGuru™, eSATA.
That leaves £77 for a 500GB storage drive and a DVDRW (forgot last time).
A Samsung T166 (£60) and a Samsung 203d (£17)
Just managed.
I actually had to cut corners by going Miné. I originally intended to go Ninja, or Thermalright Ultima 90i + Scythe Flex, but that wouldn't leave enough for the DVDRW (it would be easy if you step down on the motherboard or drop the sound card, but I didn't want to do either). The only thing I neglected is the delivery cost of the Mtron. But if the motherboard can drop towards £100 on a Today Only deal, that should just about cover it