I'm building a new PC (check current crappy specs here) and I'm looking for a graphics card that will allow me to work easily with Photoshop. I should mention that the image sizes that I plan to work with are huge! between 500,000,000px and 1,300,000,000px per layer and at least 30 layers. I'm trying to keep everything within a certain budget and I've already decided on a CPU (Intel Core i7 2600K OC'ed to 5.1GHz) and RAM (16GB of G.SKILL Ripjaws X Series 2133 PC3 17000) but now there's the matter of the GPU. So I've been eying the EVGA GeForce GTX 560 Ti but I need someone to tell me if this will play nice with Photoshop and the ridiculous image sizes that I have planned. Or is it overkill?