My parents are thinking about buying a new computer since our Windows box has been acting weird lately, and they don't want to deal with the viruses and spyware. They don't want to spend a lot of money though so I was thinking that they could get a G4 powermac. what i would like to know is what model would be the closest in power to what they have now which is a P4 at around 2GHZ with I think 512MB Ram. they mostly would use it for internet and Word so could someone recommend a Mac that would be at least the same speed as what they have now for those things.