Usually I'd say yes because the wattage and combined amperage is more than sufficient. However, I notice that (with this model at least) Antec has chosen three +12V rails instead of one combined +12V rail. The 12V3 rail rated at 25A *should* be enough, but I'm not 100% certain.
The Antec will be heaps. Even with 3 12V rails. Depending on the rest of your system I would have a look at 500W PSUs. You may find they are a bit cheaper. ITSDirect have a Corsair 550VX listed for $115.