Just want to say thanks for all the feedback so far I am still very tempted by the Dell XPS700 I understand all the worries about them but they do reckon that with the new XPS700 you can change the components later on. However I am intrested to see if I could build a better system myself. I have given it some thought and come up with a new config. Few things I added a physics card only to see if you think it is compatiable with this config it does not mean I will add one straight away. Also I need to know what cables, etc I would need to put this system together all is there enough cooling in the setup. The room it will be in has air-conditioning so it is fairly cool throughout the day. This is the config so far:
Logitech MX 5000 Laser Cordless Bluetooth 2.0 Desktop Combination - Retail (KB-075-LG) - £93.94
Icemat - Black 2nd Edition (GS-001-IC) - £19.62
Thermaltake VA9000SWA Kandalf Aluminium Full Tower - Silver = £132.26
Sapphire PURE RD580 CrossFire (Socket 939) PCI-Express Motherboard (PC-A9RD580) (MB-005-SP) - £164.44
Soundgraph iMON VFD - Silver (BB-001-SG) - £69.27
CA-011-TG Tagan TG900-U95 900W ATX2.01 Turbojet Quad SLi Silent PSU (CA-011-TG) - £139.95
AMD Athlon 64 FX-62 2.8GHz Socket AM2, 2MB, BOXED w/fan - £795.01
Thermaltake Big Typhoon 4 in 1 Heatpipe (Socket 939/754/775/478) CPU Cooler (CL-P0114) (HS-007-TT) - £29.32
Corsair 2GB DDR2 XMS2-6400C4 TwinX (2x1GB) (MY-108-CS) - £211.44
Sony DWG120A 16x16 DVD±RW Dual Layer ReWriter (Silver) - OEM (CD-048-SO) - £26.97
Sony DDU-1615 DVD-ROM (Silver) - OEM (CD-015-SO) - £14.10
Mitsumi FA 404M 7in1 USB 2.0 Floppy & Media Drive - Silver (HD-000-MI) - £14.04
Icy Box MB-122AKGF-S 3.5" IDE HDD Caddy - Silver (HD-008-BT) - £28.14
Seagate Barracuda 7200.10 750GB SATA2 16MB 7200RPM at £275.01 X 3 = £825.03
Sapphire ATI Radeon X1900 XT-X BLIZZARD 512MB GDDR3 AVIVO TV-Out/Dual DVI (PCI-Express) - Retail (GX-123-SP) - £411.19
Sapphire ATI Radeon X1900 XT-X BLIZZARD 512MB GDDR3 AVIVO TV-Out/Dual DVI (PCI-Express) - Retail (GX-123-SP) - £411.19
Asus Ageia PhysX Accelerator - Retail (GX-100-AS) - £199.69
Creative Sound Blaster X-Fi Fatal1ty FPS Edition + HS600 £29.99 Gaming Headset Bundle - Retail (SC-041-CL) - £145.11
Grand Total: £3730.71