The current psu was 1200W
Though i'm hoping to get a smaller one if possible to save some money.
I used one of the calculators from Admiral Huddys link in another thread and it tells me i only need 500W.
I'll need to look into the gfx card requirements, ive no idea what it is at the moment.
This is the spec:
• Intel Skulltrail, i5400 Express 771x2 PCI-E (x16) DDR2 ECC/Non-ECC 800MHz, SATA II, SATA RAID, E-ATX
• 8 gig ram
• 2 x Intel Xeon Quad E5420 @ 2.5GHz
• 2 x Zalman CNPS9500A-LED CPU Cooler
• Sapphire ATI Radeon HD 5870 1024MB GDDR5 PCI-Express Graphics Card
• 2 x Samsung SpinPoint F1 750GB SATA-II 32MB Cache
• Sony NEC Optiarc AD-7200S 20x DVD±RW SATA Dual Layer ReWriter
• Lian Li PC-A71B Aluminium Tower Case - Black
• Creative Sound Blaster X-Fi Xtreme Music 7.1 Sound Card
• Microsoft Windows Vista Ultimate SP1 64-Bit
• SST 1200W SST-DA1200 MODULAR PSU