phenom 9550 BE cpu
4gb ddr 800 ram
650 watt psu
TA770 A2+ mb
creative x-fi sound card
2 x dvd rw drives both SATA
2 x Western Digital Caviar Blue 250GB hard drives in raid 0 SATA
videomate s350 tv tuner card
I know very little about PSU and wondering what people may recommend would prefer a psu with 4 x SATA also if possible
I recommend you to go for the ANTEC TruePower New 550W (£69.99 inc VAT).
This PSU presents a combined +12V rating of 45A(540W), which is divided up into four 20A +12V rails (over current protected). It also has one PCIe 6-pin and another PCIe (6+2)-pin connectors, and 9xSATA and 9xStandard peripheral power connectors. You could even run two 9800GT in SLI without any problem.