My suggestion would be a quality power supply that supplies plenty of power to the 12V rail, since high performance harddrives do pull about 2 amps a piece off of this rail. Enermax power supplies by far supply the most 12V power over other power supplies....My suggestion is to go with an Enermax AX465-VE (466 watts))....here are the power supply specifications:
compared to the antec true power 550
Both of these are great power supplies but I personally opt for the Enermax :smile:
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A little sidenote: I don't know if you plan to use the Seagate Barracuda IV drives in RAID 0 but I don't recommend it... their performance under RAID 0 is very poor, you will need to contact Seagate for special RAID 0 versions of those HDs if you want to use them in RAID 0 at maximum performance and already bought them.
Anyway I recommend atleast a 450W PSU with high 5V and 12V amperage.
My dual-PSU PC is so powerfull that the neighbourhood dimms when I turn it on
Your main concern should be the 12V rail. If you consider each hdd requiring 2A on the 12V line plus that cpu is rated at 8.5A at 12V plus the dvd and CDRW drives; Make sure you PS has a 12V rating of at least 24A. The overall wattage rating should probably be around 450W. Here is a <A HREF="http://firingsquad.gamers.com/guides/power_supply/defau..." target="_new">link</A> to a guide for power supplies at firingsquad. Good luck.
thanks for the advice but i've been there done that i'm not currently using a raid 0 for that reason i had a array crash on me i tried to stripe them again and they would not do it they worked fine as single drives since gotten two fireball 3 drives from maxtor wont know how they are untill i get my new power supp thanx for the advice everyone