Active cooling. Heck I even installed an extra PCI Slot mounted fan for my already actively cooled 7300GT, which now idles at 45 C.
NOTE: My rig is just infront of an office type aircon unit. About five feet away. So noise isn't a problem kay mas noisier ang aircon.
Though unrelated, the north bridge of my mobo (MSI K9 NEO-F V3) is also actively cooled even though it originally came passively cooled.