Hey cyonix, Thanks for the guide. I'm new to osx86 and this forum, but when I finally forced myself not to devaite from the steps you set out, I got everything (pretty much) going on my m4300. I selected Speedstep under Customize when installing, and it works fine for me. I also have to select the CPUPowerManagement option for it to load OS X properly without the install disk. I'm downloading the kalyway_10.5.3_ComboUpdate right now. Have you given this update a try yet? Also, have you had any luck getting the mic and speaker jacks to work - or to have the lan picked up properly on startup? Anyway - spent alot of time going over this guide in the last couple of days and wanted to thank you for putting it out there.