Between the two, the Antec definitely gets my vote.
That OCZ unit comes with hardly any connectors at all. Only two SATA connectors, and only a 4-pin mobo connector.
Edit: The 450W Corsair is also an excellent unit, if the extra money is in your budget.
__________________ i7 2600K | ASUS Maximus IV GENE-Z | GTX Titan | Corsair DDR3-2133 |