I have this psu http://www.newegg.com/Product/Product.asp?Item=N82E16817163110 and want to know if its enough for a dfi nf4 ultra infinity mobo (skt 939), an a64 3700+ san diego core (skt 939), a 7600gt (pcie), 80 gig hdd, dvd burner, and 2 gigs of ddr400 ram all at stock speeds. do you think I'll have enough juice.