£350 ex vat upgrade

[CainHunt]

I need a new motherboard, ram, CPU and graphics card.
I like gaming and my current system won't run UT3.
I also do some video editing + lots of stills editing.

I'm thinking about an 8800GT but don't know whether the extra price for 512 is worth it over a 256 card.
I'm interested in a Q6600 but don't know whether the performance boost over dual core is worth it.

I just might splash out on a Raptor drive on top of the £350 (my current one is a WD caviar 120GB Sata 2) but again don't know if it is worth the extra £96 ex vat.

Any advice please?

 

[semi-pro waster]

Slightly over the £350 ex Vat but the 512mb version of the 8800GT is worth it over the 256mb one, particularly if you are playing at 1280x1024 or above.

OcUK GeForce 8800 GT 512MB GDDR3 HDTV/Dual DVI (PCI-Express) - Retail £141.99
(£166.84) £141.99
(£166.84)
OcUK Value IP35 Pro Intel P35 (Socket 775) PCI-Express DDR2 Motherboard £54.99
(£64.61) £54.99
(£64.61)
Intel Core 2 Quad Pro Q6600 "Energy Efficient SLACR 95W Edition" 2.40GHz (1066FSB) - Retail £141.99
(£166.84) £141.99
(£166.84)
GeIL 2GB (2x1GB) PC2-6400C4 800MHz Ultra Low Latency DDR2 Dual Channel Kit (GX22GB6400UDC) £24.99
(£29.36) £24.99
(£29.36)
Sub Total : £363.96
Shipping cost assumes delivery to UK Mainland with:
City Link Parcel Next Day (Delivered Mon-Fri)
(This can be changed during checkout) Shipping : FREE
VAT is being charged at 17.5% VAT : £63.69
Total : £427.65