I have sawtooth G4 back in the US, Its a 400 Mhtz and the thing still runs like new. I've been doing my research so when I get back I can start doing my upgrading. I should be back in the states in 2-3 months (God willing), and then I will start the project with Updates in this forum. My goal is to keep the CD drive, and with the right MB I think it may be possible. Also the liquid cooling, I'm thinking a single fan AIO unit standing next to the MB with the hoses on top, so when the door closes, it will just fold down on to the opening, this means no stretching hoses as they will just run from the top to the CPU over the video card. I can't wait to get started.