I wouldn't pay that much for a TT or a Vantec if I could get an Antec 330W truepower for $53, 380W for $71, or 430W for $78 at newegg. Antec has good psus and they have a good return policy if anything happens. There's a Sparkle 400W for $63, and alot of Enermax psus under $100 which have a good amount of watts, but you might not need that much either.
I would get around a 330watt to a 400watt psu and you should have no problems if you buy quality.