He didn't ask about gaming GPUs, he asked about a card and the amps.
What the offical amp usage on the 9600GT Also would my Antec with 25A handle it
Well, pretty much any Antec PSU made in the last 3years will run that card no problem. Nvidia lists 300-400w requirement on that card, depending on the model (600mhz gpu clock = 300w PSU, 650 GPU clock = 400w PSU) but those numbers are inflated to compensate for cheap, low quality power supplies. Antec is much better than your average PSU, so I would not be worried about it.