I work with a Dell GX100 with its integrated graphics and wish to upgrade with an add-on graphics card. It requires a PCI card. What would others recommend (preferrably from personal experience with this system) as an easy-to-install and setup 32-64 MB card with good 3D performance. I don't plan to spend more than about $100 and I don't expect top-notch performance (obviously). Thanks very much!