This is what I settled for in the end. It's an overclocking xmas! 
Antec Nine Hundred Ultimate Gaming case £59.99 1 £59.99
Inc. 200mm fan! The daddy!
Intel Core 2 DUO E6300 "LGA775 Allendale" 1.86GHz (1066FSB) - OEM £93.99 1 £93.99
Soon to break 3GHz and then on to the stars!
Gigabyte GA_965P_DS4 (Socket 775) PCI-Express DDR2 Motherboard £99.99 1 £99.99
Fantastic FSB potential! Raid 0. 4xDDR2 slots for more ram later.
Samsung SpinPoint P SP2504C 250GB SATA-II 8MB Cache - OEM £42.99 2 £85.98
Raid 0, you know you want to!
Samsung SH-182MRSMN 18x18 DVD±RW Dual Layer Lightscribe ReWriter (Beige,Black,Silver) - Retail £19.99 1 £19.99
Well, it's only £20!
Microsoft Windows XP Home Edition inc. SP2 - OEM - 1Pk (N09-01528) £49.99 1 £49.99
Necessary evil.
Linksys WAG354G-UK 4-Port Wireless-G Broadband Modem Router £36.99 1 £36.99
Neat replacement for my tempremental old belkin.
Belkin F5D7000UK 802.11g Wireless PCI Adapter £16.95 1 £16.95
I've found their cards to be good in the past.
GeIL 2GB (2x1GB) PC6400C4 800MHz Ultra Low Latency DDR2 Dual Channel Kit (GX22GB6400UDC) £155.99 1 £155.99
Gets great reviews and has excellent overclock potential beyond 400mhz.
HIS ATI Radeon X1950 XT ICEQ 3 TURBO SILENT Heatpipe 256MB GDDR3 VIVO TV-Out/Dual DVI (PCI-Express) - Retail (RX1950XT-256ICEQT) £169.99 1 £169.99
1080p! Nice performance for the price!
Akasa Rounded Ultra ATA133/100/66 IDE Cable (0.45m) - Metal Braided £4.99 1 £4.99
Get rid of the untidy IDE cable to the optical drive using this.
Titan Vanessa-L TTC-NK25TB/SC (RB) Heatpipe Cooling Fan (462/478/754/939/940/LGA775) £19.99 1 £19.99
Great reviews and the fan is 120mm so can be replaced with a quieter papst one if required.
Akasa AK-P050FG8-BKUK 500W Green Power 80+ £57.99 1 £57.99
Single 120mm fan for quietness and excellent efficiency for lower running cost (it's on most of the time!). I also think better efficiency should mean lower fan rpm as less is lost to heat - but this is unproven!
So should be quick and quiet.
Thanks for all your various help on my threads to work out this spec.
Merry Xmas

Antec Nine Hundred Ultimate Gaming case £59.99 1 £59.99
Inc. 200mm fan! The daddy!
Intel Core 2 DUO E6300 "LGA775 Allendale" 1.86GHz (1066FSB) - OEM £93.99 1 £93.99
Soon to break 3GHz and then on to the stars!
Gigabyte GA_965P_DS4 (Socket 775) PCI-Express DDR2 Motherboard £99.99 1 £99.99
Fantastic FSB potential! Raid 0. 4xDDR2 slots for more ram later.
Samsung SpinPoint P SP2504C 250GB SATA-II 8MB Cache - OEM £42.99 2 £85.98
Raid 0, you know you want to!
Samsung SH-182MRSMN 18x18 DVD±RW Dual Layer Lightscribe ReWriter (Beige,Black,Silver) - Retail £19.99 1 £19.99
Well, it's only £20!
Microsoft Windows XP Home Edition inc. SP2 - OEM - 1Pk (N09-01528) £49.99 1 £49.99
Necessary evil.
Linksys WAG354G-UK 4-Port Wireless-G Broadband Modem Router £36.99 1 £36.99
Neat replacement for my tempremental old belkin.
Belkin F5D7000UK 802.11g Wireless PCI Adapter £16.95 1 £16.95
I've found their cards to be good in the past.
GeIL 2GB (2x1GB) PC6400C4 800MHz Ultra Low Latency DDR2 Dual Channel Kit (GX22GB6400UDC) £155.99 1 £155.99
Gets great reviews and has excellent overclock potential beyond 400mhz.
HIS ATI Radeon X1950 XT ICEQ 3 TURBO SILENT Heatpipe 256MB GDDR3 VIVO TV-Out/Dual DVI (PCI-Express) - Retail (RX1950XT-256ICEQT) £169.99 1 £169.99
1080p! Nice performance for the price!
Akasa Rounded Ultra ATA133/100/66 IDE Cable (0.45m) - Metal Braided £4.99 1 £4.99
Get rid of the untidy IDE cable to the optical drive using this.
Titan Vanessa-L TTC-NK25TB/SC (RB) Heatpipe Cooling Fan (462/478/754/939/940/LGA775) £19.99 1 £19.99
Great reviews and the fan is 120mm so can be replaced with a quieter papst one if required.
Akasa AK-P050FG8-BKUK 500W Green Power 80+ £57.99 1 £57.99
Single 120mm fan for quietness and excellent efficiency for lower running cost (it's on most of the time!). I also think better efficiency should mean lower fan rpm as less is lost to heat - but this is unproven!
So should be quick and quiet.

Thanks for all your various help on my threads to work out this spec.
Merry Xmas
