My 450 mhz G4 cube (with 512megs memory) was bought in 9/2000. Now with OS 10.2.3 it is getting sluggish. Have been reading a lot of the FAQ about various upgrades. My main interest is upgrading the CPU. It seems sources are Powerlogix and Sonnet. But it seems rather confusing. So what is the current feeling of the Cube list readers? Thanks crmock40