Corsairs PSU is fine but i would recommend get a something at 650W. More headroom for upgrades later on.
Dominator RAM is a little overkill, pretty sure you can get better priced RAM. You can stick with Corsair and get Vengeance RAM @ 1600Mhz and save a bit and buy a better PSU or CPU. most games now are starting to utilize quad core.
thanks for all the replies guys this build is really last minute and forgot to fill in some other info also all the parts i choose are from a price limit and availability from my supplier. I buy all my hardware directly from my supplier so they only have certain brands (iam in south africa) i followed a PSU guide and choose that specific PSU due to availability and pricing. Also supplier doesn't have any I5's. This is the PSU guide i followed the PSU i chose is in Tier 2. http://www.eggxpert.com/forums/thread/323050.aspx I just wanted to get some outside opinion or advice regarding the matter. Ill talk to the client and see if hes happy with the build.