/shrug. Thermaltake is usually pretty good for power supplies. I don't use them alot though. Wattagewise, and warrantywise that power supply would work for your system. if you want something bulletproof buy a high end Enermax Power supply. For a budget option, maybe this antec? http://www.newegg.com/Product/Product.aspx?Item=N82E16817371059
I have a bunch of them in engineering PC's (40 of them actually) and they have all been solid so far. We usually go with a 750 watt unit or so, but those were on sale when we bought them. They've been in service about a year and a half now give or take. Most of the rest of the fleet is on Antec 750 watt units, with a few enermax PSU's thrown in on some higher end boxes.
If you want to make an investment for future upgrades and have a solid power supply that can take anything you can throw at it with a great warranty and even better anti damage capabilities, get this one: http://www.newegg.com/Product/Product.aspx?Item=N82E16817194101