What is the power supply on a Gateway DX4860-EF31P?

I'm looking into getting a new graphics card, and want to know if my computer can handle it.

Look like the entire DX line has 300W PSUs. That being said, I don't know if I would actually trust that PSU to put out 300W. Rule of thumb is that you almost always want to upgrade the PSU if you're upgrading the GPU in an OEM machine.

What graphics card are you getting?
What graphics card do you have?
Does the PSU have a label on it that shows 12v wattage or amps?
What CPU does the computer have?