right i finally think i have the setup that i want, it is also leaving the option open for me to have 2 graphics cards if i so require.
NOTE - can someone double check that the below is fully compatable, thanks!
*** NEW SYSTEM SPEC #2 ***
Motherboard - Asus P5W DH Deluxe WiFi (Socket 775) PCI-Express DDR2 Motherboard (MB-152-AS)
Processor - Intel Core 2 DUO E6300 "LGA775 Allendale" 1.86GHz (1066FSB) - OEM (CP-135-IN)
HSF - Arctic Cooling Freezer 7 Pro CPU Cooler (Socket 775) (HS-017-AR)
RAM - GeIL 1GB (2x512MB) PC6400 800MHz Ultra Low Latency DDR2 Dual Channel Kit (GX21GB6400UDC) (MY-057-GL)
HDD - Seagate Barracuda 7200.10 200GB ST3200820AS SATA-II 8MB Cache - OEM (HD-085-SE)
Graphics Card - Connect3D ATI Radeon X1900 XT 256MB GDDR3 AVIVO TV-Out/Dual DVI (PCI-Express) - Retail (GX-053-CO)
£617 exc. delivery