If you have aout $200 to spent, get an unlocked Socket A Duron and a new KT133 mobo. If you have more $ get a Socket A T-Bird and a KT133a mobo. With a cheap Gold Finger Device you could easily get your computer running @750MHz or higher for about $20-40. My brother has a Slot A 750MHz and he used a GFD to get 950MHz. With some more experimenting (and maybe soldering the resistor kit) I'm sure he can squeeze over 1GHz out of the Slot A. Not bad for a little work.