Any way I decided to buy one piece at a time and in strict phases. Phase one is the basics: Case, PSU, CPU, HeatSink and Motherboard. I have now completed this with these parts:
ASRock 4Core-DUAL VSTA motherboard
Intel Core 2 Duo e4300 1.8Ghz
Arctic Cooling Freezer 7 Pro
MS-Tech ATX case with perspex window and lights
WinPower generic 650Watt PSU
I realise the PSU is not the best but it will get me going and I already have my eye on an OCZ 700Watt with lights and 120mm fan.
So far the cost has been extremely reasonable. €70 for the board, €80 for the Cpu, €85 for the case and cooler and €35 for the Psu. Total = €270
Add to this two components I am carrying over from the old machine. A Sapphire X1950Pro AGP 512GDDR3 and Creative Soundblaster X-FI Platinum, and I am almost there already.
The Next Phase is OS and Storage. I'm not exactly excited at the prospect of Windows Vista yet especially as I actually like playing games so I have decided on an OEM copy of Windows XP Media Centre Edition, I've been very fortunate in tracking down a copy of it on Ebay for €90 . I also got 2GB (2x1GB) of DDR2 for just € 50 again from Ebay and including some Aluminium heat spreaders. I expected Windows to cost a fair amount but so far the total is only €410! Since this is going so well I have decided to splash out on 2 500GB WD Caviars each with 16MB Cache to set up in RAID0. The price on them is actually fairly low so fingers crossed.
The final phase will be customisation including fans, braded cables and extras such as an external modem, tv card and MCE remote. Lets see how well I can undercut a stock Dell offering for eh?