I have recently switched from the PC world over to the Mac world. I currently have an Intel iMac, but am looking into purchasing a used mac desktop (a PowerPC version - G4 or something of the like). I am having a bit of trouble determining what specs I should look at. Being well versed in the PC world I know that typically one should get the fastest processor and the most memory as possible considering one's budget. However with the PowerPC processor, I seem to recall that this is not necessarily true - or at least one can't compare the specs from a PowerPC Mac to an Windows based PC thinking that same specs would yield similar performance. My main uses for this desktop would be: Internet Sharing very minimal office use - excel/word would like to have OS X 10.4.11 Bottom line is that this machine would not be used for any heavy processing - such as photoshop/final cut, etc. Basically a dummy to serve internet to a couple other machines/routers. What would/should my minimum specs be to run the above? Would a G4 733Ghz with 1.5GB RAM suffice?