Close to £300ish.
Intel Core 2 Duo E4300 "LGA775 Allendale" 1.80GHz (800FSB) - Retail £65.99
(£77.54)
OcUK GeForce 8800 GTS 320MB GDDR3 HDTV/Dual DVI (PCI-Express) - Retail £151.99 (£178.59)
Gigabyte GA_965P_S3 (Socket 775) PCI-Express DDR2 Motherboard £59.99
(£70.49)
Sub Total : £277.97
Shipping cost assumes delivery to UK Mainland with:
City Link Parcel Next Day (Delivered Mon-Fri)
(This can be changed during checkout) Shipping : £8.25
Vat : £50.09
Total : £336.31
Nice bit of clocking and you have a excellent gaming pc. An extra £20 would be good for a DS3P though.
If thats too much then how about this:-
Gigabyte GA_965P_DQ6 (Socket 775) PCI-Express DDR2 Motherboard - OEM £50.00 (£58.75)
Sapphire ATI Radeon X1950 Pro 512MB GDDR3 HDTV/Dual DVI (PCI-Express) - Retail £99.99 (£117.49)
Intel Core 2 Duo E6320 "LGA775 Conroe" 1.86GHz (1066FSB) - Retail £94.99
(£111.61)
Sub Total : £244.98
Shipping cost assumes delivery to UK Mainland with:
City Link Parcel Next Day (Delivered Mon-Fri)
(This can be changed during checkout) Shipping : £8.25
Vat : £44.32
Total : £297.55
The motherboard is a OEM version in the clearance section but that is a bargain price for that board.
**Edit** Did'nt realise you wanted the ram as well for £300.
In which case how about:-
Intel Core 2 Duo E4300 "LGA775 Allendale" 1.80GHz (800FSB) - Retail £65.99
(£77.54)
Gigabyte GA_965P_DQ6 (Socket 775) PCI-Express DDR2 Motherboard - OEM £50.00 (£58.75)
Sapphire ATI Radeon X1950 Pro 512MB GDDR3 HDTV/Dual DVI (PCI-Express) - Retail £99.99 (£117.49)
GeIL 2GB (2x1GB) PC6400C4 800MHz Ultra Low Latency DDR2 Dual Channel Kit (GX22GB6400UDC) £49.99 (£58.74)
Sub Total : £265.97
Shipping cost assumes delivery to UK Mainland with:
City Link Parcel Next Day (Delivered Mon-Fri)
(This can be changed during checkout) Shipping : £8.25
Vat : £47.99
Total : £322.21
Only £22 over budget and it's still the same clearance mobo. Just dropped the cpu down to a 4300 and added the ram.