I just traded a working beige G3 tower and a parts equivalent to someone who needed it for ProTools work, in exchange for an AGP graphics unit.

I happen to have had one of these running before with a dual 500MHz G4 in it; the machine died, but I still have the dual G4. Talk of installing Leopard on such a machine, if it really is this simple, interests me.

How well do these older G4s run Leopard? I have a 64MB NVidia card I could throw in the thing....