I recently installed a Sonnet 1.2. It was time consuming only because I had never taken the Cube down to the "Buck Naked" state that is required to put in the fan. I think they recommend a dealer install to cover themselves. Was it hard? Not at all. The photo copied instructions were clear and concise. I would have to say it has been the best upgrade that I have done, bang for buck wise. MP3 rips that were 6x with the 450 are 15x with the 1.2. My "xbench" went through the roof 52.92 before and 101.2 after. The fan is quiet, I had visions of a racket like my LaCie external firewire drive makes. Dan On Wednesday, May 14, 2003, at 12:55 PM, Francisco Romero wrote: > Now, the encore page recommend dealer installation for the cube > upgrade card. > > Is it really that complex? > > Regards, > > Francisco Romero >