Wow!! I'm as happy as a pig in sh*t to get a reply. I have an Acer Power SE and if I'm reading the chart on the Acer site correctly, the board will support up to a PIII 750. I already bought a celeron 733 on eBay for $29 and I'm thinking about giving it a try. Will it make my machine run hotter? Is it hard to install? I've installed ram and sound cards but I'm not sure if I can handle this. Is there anything else that has to be done after it is installed? Thanks again for the help, John!