How bout this one? its the 600 w version but is only 59.99 because of a promo codehttp://www.newegg.com/Product/Product.aspx?Item=N82E16817341017
That is the best bargain at the minute, $49.99 with rebate and will easily power your setup.
I have the 700w version and its been rock steady for years.
It is fair to say that OCZ aren't in the same league as Corsair and Seasonic but thats not to say they aren't a decent psu manufacturer and for that price its a steal.
Personally for $10 more (with rebate) I'd go for the Corsair but the OCZ will be fine if thats the one you decide on.