R/S 6000: This is IBM's medium range UNIX offering. It is usually powered by at least 2 Power PC's. At work, We currently have 4 of these machines, each with 2 300MHz PPC's and 1 gig of physical memory. We run AIX on these machines. The R/S 6000 comes in many sizes, R/S 6000 is really a family designation. We have F40's at work. The F40 is the higher end R/S 6000. I have heard rummors that you can run PPC Linux on these machines. I am sure IBM has done this in their shops