HI all 
I plan on building the rig below have I made any glaring mistakes that anyone can point out? I have a harddrive and dvd that I was going to reuse from my old comp.
I went AMD mainly to give me enough spare cash to get an 8800 as this rig will be used mainly for gaming. I assume this would be wiser than going Intel dual core and getting a lesser graphics card?
AMD Athlon 64 X2 Dual Core 4200+ 2.20GHz (Socket AM2) - Retail £59.99
(£70.49) £59.99
Abit KN9 nForce Ultra (Socket AM2) PCI-Express DDR2 Motherboard £39.99
(£46.99) £39.99
G.Skill 2GB DDR2 NR PC2-6400 (2x1GB) CAS5 Dual Channel Kit (F2-6400 £89.99
(£105.74) £89.99
BFG GeForce 8800 GTS OC 320MB GDDR3 HDTV/Dual DVI (PCI-Express) - Retail £179.99
(£211.49) £179.99
Hiper HPU-4M580 Type R 580W ATX2.2 PSU - Black £47.99
(£56.39) £47.99
Akasa AK-ZEN-01-BK Zen Black Case - No PSU £24.99
(£29.36) £24.99.
**Edit ***
Sorry forgot to mention that budget top end is around £500
*******
One last question
I was looking at getting this case as it had a power supply built in, would the PSU be strong enough for the above kit?
Antec NSK6500 Super Midi Tower Case - 430W PSU
Many thanks
Thomo

I plan on building the rig below have I made any glaring mistakes that anyone can point out? I have a harddrive and dvd that I was going to reuse from my old comp.
I went AMD mainly to give me enough spare cash to get an 8800 as this rig will be used mainly for gaming. I assume this would be wiser than going Intel dual core and getting a lesser graphics card?
AMD Athlon 64 X2 Dual Core 4200+ 2.20GHz (Socket AM2) - Retail £59.99
(£70.49) £59.99
Abit KN9 nForce Ultra (Socket AM2) PCI-Express DDR2 Motherboard £39.99
(£46.99) £39.99
G.Skill 2GB DDR2 NR PC2-6400 (2x1GB) CAS5 Dual Channel Kit (F2-6400 £89.99
(£105.74) £89.99
BFG GeForce 8800 GTS OC 320MB GDDR3 HDTV/Dual DVI (PCI-Express) - Retail £179.99
(£211.49) £179.99
Hiper HPU-4M580 Type R 580W ATX2.2 PSU - Black £47.99
(£56.39) £47.99
Akasa AK-ZEN-01-BK Zen Black Case - No PSU £24.99
(£29.36) £24.99.
**Edit ***
Sorry forgot to mention that budget top end is around £500
*******
One last question

Antec NSK6500 Super Midi Tower Case - 430W PSU
Many thanks
Thomo