I am buying a refurb Dell 390 desktop with a core 2 duo processor, windows7 64bit, 8g of ram, a 1tb hdd and will be using it with a Sharp Aquos 32" hd tv monitor to edit high def video from a gopro hero 2 camera off of a hobby rc electric glider. I am hoping for smooth fluid video without glitching. Which graphics card would function the best for this configuration?