Ideal watts for the NVIDIA Geforce GT630

[OverCubing4]

Hi, I would just like to know how much watts would I need to power all my components comfortably. My PSU right now is a 430w Corsair CX430 and I'm wondering if the system will be unstable if I add an SSD along with the NVIDIA Geforce GT630

If I can't use 430w to power all my hardware, then please let me know.

My current specs are:
Intel Core 2 Quad Q8300 2.50ghz
8GB Ram
NVIDIA Geforce GT630
1TB Hitachi HDS721010CLA332 Hard Drive
Corsair CX430 430w PSU

 

[OverCubing4]

OK, thanks