Replacing Matrox with nVidia

Hello, Currently using SuSE 7.1 with Matrox Millinum II video card. Will replace it with a Cardexpert TNT2 M64. Need advice to keep me out of a possible linux ditch. - I plain to change inittab to boot into runlevel 3 (non xdm). - Replace the video cards. - Reboot linux, login as root, run Sax2 to setup video card. - Follow instructions from Linux Knowledge Portal on nVidia with SuSE 7.1 to get hardware acceleration. - Reset inittab to runlevel 5 and reboot. Anything else I should be aware of which might help/hurt in this effort. TIA Terry