My awesome friend is giving me a pair of G4 towers today. He got them from a college near where he lives. The one is a DP 450, the other a single 466. I have to work on them because neither boot currently. The tech at the school said they both have blow power supplies, so I'll start there. Does a B&W power supply work in one of these? I have a bunch of them if it does. I can't wait for a new project!