I'm an nVidia user, myself, and I have been for several years. Before my first nVidia (an old GeForce 256) I was running Matrox. One of the contribuiting factors now in buying a video card is "compatability" with chipsets. nVidia video card + nVidia nForce chipset runs absolutely spectacularly and is very stable. The only problems I ever had was on a small PSU, only 400W, but since I went bigger (550W modular) I haven't had any problems.