Right, thanks for the help people. Unless you have any last minute additions, this is what Ive decided on:

Coolermaster Centurion 5 - Silver/Black - No PSU    -    Ã,£39.95
Asus P5B i965P PCI-E (Socket 775) DDR2 Motherboard    -    Ã,£101.66
Intel Core 2 DUO E6400 2.13GHz Conroe 2Mb Cache LGA775 (1066 Mhz) - Retail    -    Ã,£162.15
Corsair Twin2X 2GB DDR2 (2x1024MB) XMS2 5400C4    -    Ã,£145.94
Club 3D nVidia GeForce 7300GT 256MB DDR2 DVI/TV Out (PCI-E) - Retail    -    Ã,£56.40
Seagate Barracuda 7200.10 SATAII NCQ 3Gb/s 320GB 16MB Cache OEM    -    Ã,£70.97
Pioneer DVR-111D 16x DVD Ã,±R/Ã,±RW/RAM Dual Layer Black - OEM    -    Ã,£24.09
3.5 inch Floppy Drive - Black    -    Ã,£4.95
19 TFT Monitor - Silver/Black 8ms w/ DVI (3 Years Onsite Warranty)    -    Ã,£124.95
Logitech Cordless Internet Pro Desktop Black - OEM    -    Ã,£24.68
      
   Tekheads P&P   Ã,£15.53
   Tekheads Total   Ã,£771.27
      
380W Enermax Coolergiant AX Series EG385AX-VHB(G)(SFMA) ATX PSU, 12V Version 1.3, aPFC   - Ã,£22.20
   
Scan P&P   Ã,£7.03
   Scan Total   Ã,£29.23

   
Total   Ã,£800.50


Unfortunately the cost of the 1GB RAM which was originally Ã,£67.43 skyrocketed to Ã,£106.75 literally overnight. Still, it made the decision to go with 2GB, which *only* jumped up from ~Ã,£125 to Ã,£146, a bit easier.

I decided to compromise on the PSU and go with a Ã,£30 Enermax rather than the Ã,£60 Tagan. My one experience of an Enermax PSU has been very positive and they seem to have good reviews so Im happy with that.

Enermax make great PSUs, you should have no trouble with that.

Quote from: dawltonsorry to hijack, but how can you tell when you need a new psu or when your current one is struggling??

is there any way to work out how much power your computer is running at?

Its a bit complicated, to do it properly you need to take each output in turn and calculate how much of that voltage your compy needs from the specifications. doing it with just the overall wattage isnt enough as you might have a 650 watt PSU which has a 30 watt +12 volt supply when your compy is drawing 300 watts but 40 of those are at +12 volts. In that case even though it would look like the supply has enough juice it hasnt.

Even doing it all is just a rule of thumb, the components probably wont need the peak power at the same time and its always best to have some headroom too.

Quote from: dawltonsorry to hijack, but how can you tell when you need a new psu or when your current one is struggling??

is there any way to work out how much power your computer is running at?

Found this guide about choosing a power supply earlier by accident that describes what Serious just said in more detail. It was published December 2002 so its a bit outdated but the method still applies.

thanks for the info guys, its helped clear up afew things that i didnt know about psu load.

cheers.

First rule of Video editing = 2x hard drives.