Hi everyone. I'm planning on replacing the graphics card on my dell XPS 8300. The dell website tells tells me that the XPS 8300 will run a GTX 560 ti and even offers to include it in the computer when you have it assembled. However, the computer only has a power input of 460W, and the Nvidia website says the GTX 560 ti needs at least 500W. Seeing as I'm not planning on replacing the power, can I get a GTX 560 ti, or should I settle for the less power-hungry non-ti version (which requires a 460W minimum)?