Is this power supply a good choice to run my system well?

My specs

Core i7 870 OC 3.3 ghz Turbo Boost on
8 GB DDR3 GSkill Ripjaws 1600 mhz RAM (1480 mhz)
Nvidia GTX 570 video card
WD Caviar Black 7200 rpm 64 mb cache HDD
Hitachi DeskStar 7200 rpm 32 mb cache HDD
3 case fans

Looking for one that is $100 tops. My current one is under 80% efficiency and seems a bit shaky on my system. Anyways, any opinions on this one? I like that it's modular, Certified 80+ Gold, and has 58 amps on one 12v rail

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

Thanks!