So imagine you only have your old PC and you don't have the money yet for a 360. What to do in the meantime?
The Official BioShock SM 2.0 Fix Blog offers a new version of this homebrew graphics downgrade for 2K Games' first-person shooter. The new beta 1 offers significantly improved visuals, as shown in a bunch of comparison movies they've posted. They also point the way to the Asankel Fix, a separate project working towards the same goal of making a way to play BioShock on older video cards.